Publications

Journal Papers
(Most of the links in the titles are DOI links.  If you are unable to access the articles through these, click on the PDF icon to download a pre-publication version or email me to request a PDF copy of the published article.)

75.) Malte Krack, M. R. W. Brake et al., “The Tribomechadynamics Research Challenge: Confronting blind predictions for the linear and nonlinear dynamics of a novel jointed structure with measurement results,” Mechanical Systems and Signal Processing, (Submitted March 2023).

74.) Matthew J. Tuman, Marcus Behling, Matthew S. Allen, Washington J. DeLima, Jonathan Hower & Randall L. Mayes, “Balancing Impedance and Controllability in Response Reconstruction with TS-IMMAT,” Experimental Techniques, 2023. https://doi.org/10.1007/s40799-023-00645-1

73.) Michael Kwarta, Matthew S. Allen, “NIXO-Based identification of the dominant terms in a nonlinear equation of motion of structures with geometric nonlinearity,” Journal of Sound and Vibration, vol. 568, 2024, p. 117900. https://doi.org/10.1016/j.jsv.2023.117900

72.) Drithi Shetty & Matthew S. Allen, “A Parametric Study of the Bouc-Wen Model for Bolted Joint Dynamics,” ASME Journal of Vibration and Acoustics, Aug 2023, vol. 145 no 4, p. 041004. https://doi.org/10.1115/1.4062103

71.) Michael Kwarta, Matthew S. Allen, “Nonlinear Identification through eXtended Outputs (NIXO) with numerical and experimental validation using geometrically nonlinear structures,” Mechanical Systems and Signal Processing, Volume 200, 1 October 2023, p. 110542. https://doi.org/10.1016/j.ymssp.2023.110542

70.) Drithi Shetty, Matthew S. Allen & Kyusic Park, “A New Approach to Model a System with Both Friction and Geometric Nonlinearity,” Journal of Sound and Vibration, vol. 552, 26 May 2023, p. 117631. https://doi.org/10.1016/j.jsv.2023.117631

69.) Sydney Ward, Dario Farina, Matthew S. Allen & Steven Charles, “System identification of tremor propagation models using muscle excitation and joint displacement measurements at the wrist,” IEEE Transactions on Biomedical Engineering (TBME), (Submitted Feb. 2022).

68.) Seyed Iman Zare Estakhraji, Mitchell Wall, Jacob Capito & Matthew S. Allen, “A Thorough Comparison Between Measurements and Predictions of the Amplitude Dependent Natural Frequencies and Damping of a Bolted Structure,” Journal of Sound and Vibration, Vol. 544, 3 February 2023, 117397, https://doi.org/10.1016/j.jsv.2022.117397

67.) Kyusic Park & Matthew S. Allen, “A Gaussian Process Regression Reduced Order Model for Geometrically Nonlinear Structures,” Mechanical Systems and Signal Processing, Vol. 184, 1 February 2023, 109720, https://doi.org/10.1016/j.ymssp.2022.109720.

66.) Jonathon L. Blank, Darryl G. Thelen, Matthew S. Allen and Joshua D. Roth, “Sensitivity of the Shear Wave Speed-Stress Relationship to Soft Tissue Material Properties and Fiber Alignment,” Journal of Mechanical Behavior of Biomaterials, Vol. 125, January 2022, 104964, https://doi.org/10.1016/j.jmbbm.2021.104964

65 .) A. Singh, M. S. Allen, R. J. Kuether, “Spider Configurations for Models with Discrete Iwan Elements,” Mechanical Systems and Signal Processing, Vol. 1. June 2019, 12391, https://doi.org/10.1007/978-3-030-12391-8_4

64.) Aabhas Singh, Matthew S. Allen & Robert J. Kuether, “Multi-mode Quasi-static Excitation for Systems with Nonlinear Joints,” Mechanical Systems and Signal Processing, Vol. 185, 15 February 2023, 109601, https://doi.org/10.1016/j.ymssp.2022.109601

63.) Iman Zare & Matthew S. Allen, “Extension of the Harmonic Balance Method for Dynamic Systems with Iwan Joints,” Mechanical Systems and Signal Processing, (Submitted Jan 2020). https://doi.org/10.1016/j.ymssp.2021.108434

62.) Mitchell Wall, Robert J. Kuether & Matthew S. Allen, “Observations of Modal Coupling due to Bolted Joints in an Experimental Benchmark Structure,” Mechanical Systems and Signal Processing, vol. 162, 2022, 107968, https://doi.org/10.1016/j.ymssp.2021.107968 . (Data Archive)

61.) Michael Kwarta, Matthew S. Allen, “Nonlinear Normal Mode Backbone Estimation with Near-Resonant Steady State Inputs,” Mechanical Systems and Signal Processing, Volume 162, 2022, 108046, ISSN 0888-3270, https://doi.org/10.1016/j.ymssp.2021.108046.

60.) Iman Zare & M.S. Allen, “Time-Domain Numerical Continuation of Periodic Orbits for Harmonically Forced Hysteretic Nonlinear Systems,” Journal of Sound and Vibration, Vol. 511, 27 October 2021, 116342, https://doi.org/10.1016/j.jsv.2021.116342.

59.) Schumann, Christopher A; Matthew S. Allen; Matthew Tuman, Washington J Delima and Eric Dodgen, “Transmission Simulator Based MIMO Response Reconstruction,” Experimental Techniques, May 2021, http://dx.doi.org/10.1007/s40799-021-00454-4.

58.) Aabhas Singh, Matthew S Allen, Melissa Schmidt-Landin and Washington J Delima, “Multi–Input Multi–Output Hybrid Active Vibration Control for High Frequency Random Vibration,” Experimental Techniques, April 2021, https://doi.org/10.1007/s40799-021-00465-1

57.) F. Latini, J. Brunetti, W. D’Ambrogio, M. S. Allen, A. Fregolent, “Nonlinear substructuring in the modal domain: numerical validation and experimental verification in presence of localized nonlinearities,” Nonlinear Dynamics, (Submitted November 2020, Accepted 3/10/2021), https://doi.org/10.1007/s11071-021-06363-w.

56.) Dario Di Maio; Paolo Castellini; Milena Martarelli; Steve J Rothberg; Matthew S Allen; Weidong D Zhu; David J Ewins, “Continuous Scanning Laser Vibrometry: A Raison d’être and Applications to Vibration Measurements,” Mechanical Systems and Signal Processing, Volume 156, July 2021, 107573, https://doi.org/10.1016/j.ymssp.2020.107573.

55.) Iman Zare, M. Wall   & M.S. Allen, “Adapting a Contact-Mechanics Algorithm to Predict Damping in Bolted Joints using Quasi-Static Modal Analysis,” Journal of Mechanical Sciences, Volume 189, 1 January 2021, 105982, https://doi.org/10.1016/j.ijmecsci.2020.105982.

54.) K. Park & M.S. Allen, “Quasi-static modal analysis for reduced order modeling of geometrically nonlinear structures,” Journal of Sound and Vibration, Vol. 502, pp 116076, 23 June 2021, https://doi.org/10.1016/j.jsv.2021.116076.

53.) D.D. Shetty & M.S. Allen, “Fast Simulation of a Single Degree-of-Freedom system consisting of an Iwan element using the Method of Averaging,” ASME Journal of Vibrations and Acoustics, Vol. 142, pp. 051107-1, Oct 2020, https://doi.org/10.1115/1.4047070.

52.) Maren Scheel, Gleb Kleyman, Ali Tatar, Matthew R. W. Brake, Simon Peter, Jean-Philippe Noël, Matthew S. Allen, Malte Krack, “Experimental Assessment of Polynomial Nonlinear State-Space and Nonlinear-Mode Models to Predict Near-Resonant Vibrations,” Mechanical Systems and Signal Processing, vol. 143, p. 106796, 2020.

51.) C. I. Van Damme, A. Madrid, M.S. Allen, J.J. Hollkamp, “Simultaneous Regression and Selection in Nonlinear Modal Model Identification,” Vibration, 2021, 4(1), 232-247; https://doi.org/10.3390/vibration4010016.

50.) Van Damme, C.I., M.S. Allen, J.J. Hollkamp, “Updating Geometrically Nonlinear Reduced Order Models using Nonlinear Modes and Harmonic Balance,” AIAA Journal, 2020, http://arc.aiaa.org/doi/abs/10.2514/1.J058698 .

49.) Van Damme, C.I., M.S. Allen, J.J. Hollkamp, “Evaluating Reduced Order Models of Geometrically Nonlinear Finite Element Models for Random Response Prediction using Static Equilibrium Paths,” Journal of Sound and Vibration (Accepted Oct. 2019).

48.) E. Jewell, M.S. Allen, S.I. Zare & M.J. Wall, “Application of Quasi-Static Modal Analysis to a Finite Element Model and Experimental Correlation,” Journal of Sound and Vibration, vol. 479, 4 August 2020, 115376

47.) J. A. Martin, D. G. Schmitz, A. C. Ehlers, M. S. Allen and D. E. Thelen, “Calibration of the Shear Wave Speed-Stress Relationship in Ex Vivo Tendons,” Journal of Biomechanics, Accepted April 2019, https://doi.org/10.1016/j.jbiomech.2019.04.015.

46.) R. M. Lacayo, L. Pesaresi J. Groß; D. Fochler, J. Armand, L. Salles, C. W. Schwingshackl, M. S. Allen, M. R Brake, “Nonlinear modeling of structures with bolted joints: A comparison of two approaches based on a time-domain and frequency-domain solver,” Mechanical Systems and Signal Processing, vol. 114, p 413-438, 2019.

45.) J. R. Franz, C. A. Francis, M. S. Allen, and D. G. Thelen, “Visuomotor Entrainment and the Frequency-Dependent Response of Walking Balance to Perturbations,” IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 25, 2017.

44.) J. A. Martin, S. Brandon, E. Keuler, J. R. Hermus, A. C. Ehlers, D. J. Segalman, M. S. Allen & D. G. Thelen, “Gauging Force by Tapping Tendons,” Nature Communications, vol. 9, no. 1, p. 1592, Apr. 2018.

43.) D. Krattiger, Long Wu, M. Zacharczuk, M. Buck, R. J. Kuether, M. S. Allen, P. Tiso, M. R.W. Brake, “Interface reduction for Hurty/Craig-Bampton substructured models: Review and improvements,” Mechanical Systems and Signal Processing, Vol. 114, p. 579-603, 2019, https://doi.org/10.1016/j.ymssp.2018.05.031 .

41.) S. Seidlitz, R. J. Kuether, and M. S. Allen, “Experimental Approach to Compare Noise Floors of Various Torsional Vibration Sensors,” Experimental Techniques, vol. 40 (2), pp 661–675, 2014.

40.) D. A. Ehrhardt, M. S. Allen, T. Beberniss, and S. A. Neild, “Finite Element Model Calibration of a Nonlinear Perforated Plate,” Journal of Sound and Vibration, vol. 392, pp. 280-294, 2017.

39.) Rothberg, S.J, Allen, M.S., Castellini P., Di Maio, D., Dirckx, J.J.J., Ewins, D.J., Halkon, B.J., Muyshondt, P., Paone N., Ryan, T., Steger, H., Tomasini, E.P., Vanlanduit, S., Vignola, J.F.J., “An international review of laser Doppler vibrometry: making light work of vibration measurement,” Optics and Lasers in Engineering, v 99, p 11-22, 2017.

38.) J. D. Schoneman, M. S. Allen, and R. J. Kuether, “Relationships between Nonlinear Normal Modes and Response to Random Inputs,” Mechanical Systems and Signal Processing, vol. 84, Part A, Pages 184-199, 2017.

37.) R. Lacayo, B. Deaner, and M. S. Allen, “A Numerical Study on the Limitations of Modal Iwan Models for Impulsive Excitations,” Journal of Sound and Vibration, vol. 390, pp. 118-140, 2017.

36.) R. J. Kuether, M. S. Allen, and J. J. Hollkamp, “Modal substructuring of geometrically nonlinear finite element models with interface reduction,” AIAA Journal, Vol. 54, No. 2, pp. 691-702, 2016.

35.) D. R. Roettgen and M. S. Allen, “Nonlinear characterization of a bolted, industrial structure using a modal framework,” Mechanical Systems and Signal Processing, vol. 84 Part B, pp. 152-170, 2017.

34.) R. J. Kuether, M. S. Allen, and J. J. Hollkamp, “Modal Substructuring for Geometrically Nonlinear Finite Element Models,” AIAA Journal, vol. 54, pp. 691-702, 2016.

33.) D. A. Ehrhardt and M. S. Allen, “Measurement of Nonlinear Normal Modes using Multi-Harmonic Stepped Force Appropriation and Free Decay,” Mechanical Systems and Signal Processing, 2016.

32.) D. A. Ehrhardt, M. S. Allen, S. Yang, and T. Beberniss, “Full-Field Linear and Nonlinear Measurements using Continuous-Scan Laser Doppler Vibrometry and High Speed Three-Dimensional Digital Image Correlation,” Mechanical Systems and Signal Processing, vol. 86 Part B, pp. 82-97, 2017.

31.) R. J. Kuether, L. Renson, T. Detroux, C. Grappasonni, G. Kerschen, and M. S. Allen, “Nonlinear Normal Modes, Modal Interactions and Isolated Resonance Curves,” Journal of Sound and Vibration, vol. 351, 2015.

30.) J. Franz, C. A. Francis, M. S. Allen, S. M. O’Connor, and D. G. Thelen, “Advanced Age Brings a Relianl Feedback to Maintain Balance During Walking,” Human Movement Sciences, vol. 40, p81–392, 2015.

29.) R. J. Kuether, B. Deaner, M. S. Allen, and J. J. Hollkamp, “An Evaluation of Nonlinear Reduced Order Models used to Compute Nonlinear Normal Modes of Geometrically Nonlinear Structures,” AIAA Journal, vol. 53, pp. 3273-3285, 2015.

28.) B. Deaner, M. S. Allen, M. J. Starr, D. J. Segalman, and H. Sumali, “Application of Viscous and Iwan Modal Damping Models to Experimental Measurements From Bolted Structures,” ASME Journal of Vibrations and Acoustics, vol. 137, p. 12, 2015.

27.) H. Ardeh and M. S. Allen, “ Multi-harmonic Multiple-point Collocation: An Iterative Method for Finding Periodic Orbits of Strongly Nonlinear Oscillators,” Journal of Computational and Nonlinear Dynamics, vol. 11, 2016.

26.) R.J. Kuether and M. S. Allen, “A Numerical Approach to Directly Compute Nonlinear Normal Modes of Geometrically Nonlinear Finite Element Models,” Mechanical Systems and Signal Processing, vol. 46, pp. 1–15, 2014.

25.) S. Yang and M. S. Allen, “Harmonic Transfer Functions to Measure Translational and Rotational Velocities with Continuous-Scan Laser Doppler Vibrometry,” J. Vib. Acoust. 136(2), 021025, 2014.

24.) S. Yang and M. S. Allen, “Lifting to Simplify Output-only Continuous Scan Laser Vibrometry,” Mechanical Systems and Signal Processing, vol. 45, pp. 267–282, 2014.

23.) D. P. Rohe and M. S. Allen, “Investigation of the Effectiveness of using an Experiment to Validate Experimental Substructure Models,” Mechanical Systems and Signal Processing, vol. 43, pp. pp. 192-216, 2014.

22.) R.L. Mayes, M.S. Allen, & D.C. Kammer, “Correcting Indefinite Mass Matrices with the Transmission Simulator Method of Substructuring,” Journal of Sound and Vibration, vol. 332, pp. 5856-5866, 2013.

21.) M. W. Sracic and M. S. Allen, “Identifying parameters of multi-degree-of-freedom nonlinear structural dynamic systems using linear time periodic approximations,” Mechanical Systems and Signal Processing, vol. 46, pp. 325–343, 2014.

20.) M.S. Allen, D. C. Kammer & R. L. Mayes, “Metrics for Diagnosing Negative Mass and Stiffness when Uncoupling Experimental and Analytical Substructures,” Journal of Sound and Vibration, vol. 331, p. 5435–5448, 2012.

19.) S. Yang and M. S. Allen, “Output-Only Modal Analysis Using Continuous-Scan Laser Doppler Vibrometry and Application to a 20kW Wind Turbine,” Mechanical Systems and Signal Processing, vol. 31, pp. 228–245, 2012.

18.) H. Frentrup and M. S. Allen, “Error in Dynamic Spring Constant Calibration of Atomic Force Microscope Probes due to Nonuniform Cantilevers,” Nanotechnology, vol. 22 p. 9pp, 14 June, 2011.

17.) M. S. Allen, H. M. Gindlin, and R. L. Mayes, “Experimental Modal Substructuring to Estimate Fixed-Base Modes from Tests on a Flexible Fixture,” Journal of Sound and Vibration, vol. 330, pp. 4413-4428, 2011.

16.) M. W. Sracic and M. S. Allen.“Method for Identifying Models of Nonlinear Systems Using Linear Time Periodic Approximations,” Mechanical Systems and Signal Processing, vol. 25, pp. 2705–2721, 2011.

15.) M. S. Allen, M. W. Sracic, S. Chauhan, and M. H. Hansen, “Output-Only Modal Analysis of Linear Time Periodic Systems with Application to Wind Turbine Simulation Data,” Mechanical Systems and Signal Processing, vol. 25, pp. 1174-1191, 2011.

14.) S. Yang, M. W. Sracic, and M. S. Allen, “Two algorithms for mass normalizing mode shapes from impact excited continuous-scan laser Doppler vibrometry,” Journal of Vibration and Acoustics, Vol. 134, pp. 021004-1, April 2012.

13.)   M. S. Allen & R. L. Mayes, “Estimating the Degree of Nonlinearity in Transient Responses with Zeroed Early-Time Fast Fourier Transforms,” Mechanical Systems and Signal Processing, vol. 24, pp. 2049–2064, 2010.

12.)   M. S. Allen, R. L. Mayes, and E. J. Bergman, “Experimental Modal Substructuring to Couple and Uncouple Substructures with Flexible Fixtures and Multi-point Connections,” Journal of Sound and Vibration, vol. 329, pp. 4891–4906, 2010.

11.)   M.S. Allen & M.W. Sracic, “A New Method for Processing Impact Excited Continuous-Scan Laser Doppler Vibrometer Measurements,” Mechanical Systems and Signal Processing, vol. 24, pp. 721–735, 2010.

10.)   E. J. Bergman, M. S. Allen, D. C. Kammer, and R. L. Mayes, “Probabilistic Investigation of Sensitivities of Advanced Test-Analysis Model Correlation Methods,” Journal of Sound and Vibration, vol. 329, pp. 2516–2531, 2010.

9.)   M. S. Allen, H. Sumali, and P. C. Penegor, “Experimental/Analytical Evaluation of the Effect of Tip Mass on Atomic Force Microscope Calibration,” ASME Journal of Dynamic Systems, Measurement and Control, 131(6): 064501, 2009.

8.) M. S. Allen “Frequency-Domain Identification of Linear Time-Periodic Systems using LTI Techniques,” Journal of Computational and Nonlinear Dynamics, Oct. 2009, Vol. 4, 041004-1, DOI: 10.1115/1.3187151

7.)   D. S. Erdahl, M. S. Allen, C. Ume and J. H. Ginsberg, “Structural Modal Analysis for Detecting Open Solder Bumps on Flip Chips,” IEEE Transactions on Advanced Packaging, vol. 31, pp. 118-126, February 2008.

6.)   M. S. Allen, H. Sumali & D. S. Epp, “Piecewise-linear Restoring Force Surfaces for Semi- Nonparametric Identification of Nonlinear Systems,” Nonlinear Dynamics, (Accepted Mar. 2007, Online May 2007).

5.)   M. S. Allen and T. G. Carne, “Comparison of Inverse Structural Filter (ISF) and Sum of Weighted Accelerations (SWAT) Time Domain Force Identification Methods,” Mechanical Systems and Signal Processing, vol. 22, pp. 1036–1054, 2008.

4.)   M. S. Allen, J. E. Massad, R. V. Field, Jr. and C. W. Dyck, “Input and Design Optimization Under Uncertainty to Minimize the Impact Velocity of an Electrostatically-Actuated MEMS Switch,” Journal of Vibration and Acoustics, vol. 130, p. 021009, 2008.

3.)   M. S. Allen and J. H. Ginsberg, “A Global, Single-Input-Multi-Output (SIMO) Implementation of the Algorithm of Mode Isolation and Applications to Analytical and Experimental Data,” Mechanical Systems and Signal Processing, vol 20, 2006, pp. 1090-1111.

2.)   J. H. Ginsberg and M. S. Allen, “A Linear Least-Squares Version of the Algorithm of Mode Isolation for Identifying Modal Properties, Part I: Conceptual Development,” Journal of the Acoustical Society of America, vol. 116, no. 2, August 2004, pp. 900-907.

1.)   M. S. Allen and J. H. Ginsberg, “A Linear Least-Squares Version of the Algorithm of Mode Isolation for Identifying Modal Properties, Part II: Application and Assessment,” Journal of the Acoustical Society of America, vol. 116, no. 2, August 2004, pp. 908-915.

Conference Papers

Marcus Behling, Matthew S. Allen, Randall L. Mayes, Washington de Lima & Jonathan Hower, “Influence of Shaker Limitations on the Success of MIMO Environment Reconstruction,” 41st International Modal Analysis Conference (IMAC XLI), Austin, TX, February 13–16, 2023.

Kyusic Park & M. S. Allen, “Nonlinear Model Updating of Geometrically Nonlinear Structures based on Gaussian Process Regression Reduced Order Modeling,” 41st International Modal Analysis Conference (IMAC XLI), Austin, TX, February 13–16, 2023

Brennen Clark, M. S. Allen & B. R. Pacini, “Case Study on the Effect of Nonlinearity in Dynamic Environment Testing” 41st International Modal Analysis Conference (IMAC XLI), Austin, TX, February 13–16, 2023.

Brennan Bahr, Drithi Shetty & M. S Allen, “Using Abaqus with Python to Perform QSMA on the TMD Structure,” 41st International Modal Analysis Conference (IMAC XLI), Austin, TX, February 13–16, 2023.

Dani E. Agramonte, Judith D. Brown, Andrew J. Sanchez, Dan R. Roettgen, M. S. Allen, Benjamin R. Pacini, “Obtaining Fixed-Base Nonlinear Modal Models from Free Boundary Testing,” 41st International Modal Analysis Conference (IMAC XLI), Austin, TX, February 13–16, 2023.

Aabhas Singh & Matthew S. Allen, “Simultaneous Direct Time Fitting of a Multi-Mode Response to Determine the Instantaneous Frequency and Damping,” 41st International Modal Analysis Conference (IMAC XLI), Austin, TX, February 13–16, 2023

Aabhas Sing, Matthew S. Allen & Robert J. Kuether, “Using Reduced Order Models to Predict Modal Coupling in Jointed Structures,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022.

M. J. Tuman, M. S. Allen, W. J. DeLima, E. Dodgen, & J. Hower, “Balancing Impedance and Controllability in Response Reconstruction,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022. (video)

Seyed Iman Zare Estakhraji, Mitch Wall, Matthew S. Allen, and Jacob Capito, “Influence of Interface Curvature in Nonlinear Model Correlation of S4 Beam with QSMA,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022. (video)

Kyusic Park & Matthew S. Allen, “A Gaussian Process Regression Reduced Order Model of Geometrically Nonlinear Structures,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022. (video)

Drithi Shetty, Kyusic Park, Courtney Payne & Matthew S. Allen, “Predicting Nonlinearity in the TMD Benchmark Structure using QSMA and SICE,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022. (video)

Daniel Agramonte, Gabrielle Graves, Kenneth Meyer, Ben Pacini, Dan Roettgen, Matthew S. Allen, Moheimin Khan, David Najera-Flores & Aabhas Singh, “Investigation into Potential Modal Coupling in a Bolted Structure Using a Nonlinear ROM and QSMA,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022.

Michael Kwarta & Matthew S. Allen, “ Application of Black-Box NIXO to Experimental Measurements,” 40th International Modal Analysis Conference (IMAC XL), Orlando, Florida, February 7-10, 2022.

Jonathan Blank, Darryl G. Thelen, Matthew S. Allen & Joshua Roth, “Sensitivity of the Shear Wave Speed-Stress Relationship in Connective Tissues to Material Properties and Microstructure – A Probabilistic Finite Element Study,” 17th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering and the 5th Conference on Imaging and Visualization (CMBBE 2021), Bonn, Germany, September 7-9, 2021. https://engrxiv.org/54btr/

Mitchell P.J. Wall, M. S. Allen, R. J. Kuether, “Nonlinear Variability due to Mode Coupling in a Bolted Benchmark Structure,” 39th International Modal Analysis Conference (IMAC XXXIX), Orlando, Florida / Virtual, February 1-11, 2021. (video)

M. J. Tuman, C. A. Schumann, M. S. Allen, W. J. DeLima, E. Dodgen, “Investigation of Transmission Simulator Based Response Reconstruction Accuracy,” 39th International Modal Analysis Conference (IMAC XXXIX), Virtual, February 1-11, 2021. (video)

A. Singh, K. Wielgus, D. Ignazio, R. J. Kuether, M. S. Allen, “Nonlinear Dynamic Analysis of a Shape Changing Finger-like Mechanism for Morphing Wings,” 39th International Modal Analysis Conference (IMAC XXXIX), Orlando, Florida / Virtual, February 1-11, 2021. (video)

A. Singh, M. S. Allen, R. J. Kuether, “Multi-mode Quasi-static Excitation for Systems with Nonlinear Joints,” 39th International Modal Analysis Conference (IMAC XXXIX), Orlando, Florida / Virtual, February 1-11, 2021. (video)

M. Kwarta and M. S. Allen, “NIXO-Based Identification of the Dominant Terms in a Nonlinear Equation of Motion,” 39th International Modal Analysis Conference (IMAC XXXIX), virtual, February 8-11, 2021. (video)

Drithi Shetty & M. S. Allen, “A General Iwan Element Derived from Quasi-Static Force-Displacement Data,” 39th International Modal Analysis Conference (IMAC XXXIX), Virtual, February 1-11, 2021. (video)

Benjamin Moldenhauer, Aabhas Singh, M. S. Allen, D. Roettgen & R. J. Kuether, “Extensions to a method for characterizing instantaneous frequency and damping of nonlinear systems,” 39th International Modal Analysis Conference (IMAC XXXIX), Virtual, February 1-11, 2021. (video)

Kyusic Park & M. S. Allen, “Model Updating and Uncertainty Quantification of Geometrically Nonlinear Panel subjected to Non-uniform Temperature Fields,” 39th International Modal Analysis Conference (IMAC XXXIX), Virtual, February 1-11, 2021. (video)

Benjamin Moldenhauer, M. S. Allen & D. Roettgen, “Variation of the restoring force surface method to estimate nonlinear stiffness and damping parameters,” International Seminar on Modal Analysis (ISMA), Leuven, Belgium / Virtual, 2020.

A. Singh, M.S. Allen & R. J. Kuether, “Substructure Interface Reduction Techniques to Capture Nonlinearities in Bolted Structures,” ASME IDETC Conference, August 2020, https://doi.org/10.1115/DETC2020-22417A

C. I. VanDamme & M.S. Allen, “Using Nonlinear Normal Modes to Optimize the Design of Geometrically Nonlinear Structures,” AIAA Sci-Tech: 60th AIAA Structures, Structural Dynamics and Materials Conference, Orlando, Florida, 2019.

C. I. Van Damme, A. E. Madrid & M. S. Allen, “Using the Harmonic Balance Method to Directly Compute NNMs of Geometrically Nonlinear Finite Element Models,” ISMA-USD Noise and Vibration Engineering Conference 2018, Leuven, Belgium, Sept. 17-19, 2019.

I. Zare & M. S. Allen, “A Block-Gauss Seidel Algorithm with Static Reduction to Predict Damping in Bolted Joints,” ISMA-USD Noise and Vibration Engineering Conference 2018, Leuven, Belgium, Sept. 17-19, 2019.

C. I. VanDamme, M.S. Allen & J. J. Hollkamp, “Nonlinear Structural Model Updating Based Upon Nonlinear Normal Modes,” AIAA Sci-Tech: 59th AIAA Structures, Structural Dynamics and Materials Conference, Orlando, Florida, 2018.

Moldenhauer, M. S. Allen, D. Roettgen, B. Owens, “Implementing Experimental Substructuring in Abaqus,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

M. Wall, I. Z. Estakhraji, M. S. Allen, “Model Correlation to a Nonlinear Bolted Structure Using Quasi-Static Modal Analysis,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

K. Park, M. S. Allen, “Nonlinear Normal Modes of Geometrically Nonlinear Structures using Quasi-static Modal Analysis,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

K. Park, M. S. Allen, “Tuning of Finite Element Model Parameters to Match Nonlinear Reduced Order Models,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

A. Singh, M. S. Allen, R.J. Kuether, “Substructure Interface Reduction with Iwan Elements to Capture Nonlinearity,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

D. Shetty, M. S. Allen, J. D. Schoneman, “Application of the Bouc-Wen model to Bolted Joint Dynamics,” in 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

M. S. Allen, J. D. Schoneman, W. Scott & J. Sills “Application of Quasi-Static Modal Analysis to an Orion Multi-Purpose Crew Vehicle Test,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

G. James, R. Grady, M. S. Allen, and E. Bruno, “Forcing Function Estimation for Space System Rollout,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

C. I. Van Damme & M. S. Allen, “Nonlinear Normal Modes of Geometrically Nonlinear Finite Element Models about Thermal Equilibrium States,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

R. M. Lacayo & M. S. Allen, “Towards an Understanding of the Transient Behavior of the Five-Parameter Iwan-Type Model,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

M. Kwarta and M. S. Allen, “Extensions to NIFO and CRP to Estimate Frequency-Independent Nonlinear Parameters,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020. (Related Technical Report 1, Report 2)

M. Kwarta and M. S. Allen, “Nonlinear Normal Mode Estimation with Near-Resonant Steady State Inputs,” in 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020. (Related Technical Report)

B. Moldenhauer, A. Singh, and P. Thoenen “Influences of Modal Coupling on Experimentally Extracted Nonlinear Modal Models,” 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, United States, 2019.

B. Moldenhauer, A. Singh, P. Thoenen, D. R. Roettgen, B. Pacini, R. J. Kuether, and M. S. Allen, “Influences of Modal Coupling on Experimentally Extracted Nonlinear Models,” in 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, United States, 2019.

B. Moldenhauer, M. S. Allen, W. J. Delima, and E. Dodgen, “Using Hybrid Modal Substructuring with a Complex Transmission Simulator to Model an Electrodynamic Shaker,” in 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, United States, 2019.

A. Singh, M.S. Allen, W.J. Delima, “Combining Electromagnetic Shakers and Piezoelectric Actuators for Control of High Frequency Random Vibration,” 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, January 28-31, 2019.

M. Kwarta, M. S. Allen and J. J. Hollkamp, “ An Interpolation Algorithm to Speed up Nonlinear Modal Testing using Force Appropriation,” in 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, United States, 2019.

A. Singh, M.P. Wall, M.S. Allen, R.J. Kuether, “Spider Configurations for Models with Discrete Iwan Elements,” 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, January 28-31, 2019.

D. Shetty and M. S. Allen, “ A New Iwan / Palmov Implementation for Fast Simulation and System Identification,” in 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, United States, 2019.

C. I. Van Damme, A. E. Madrid, M. S. Allen and J. J. Hollkamp, “ Simultaneous Regression and Selection in Nonlinear Modal Model Identification,” in 37th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida, United states, 2019.

C. I. Van Damme, M. Kwarta, M. S. Allen and J. J. Hollkamp, “Nonlinear Model Updating Applied to Reduced Order Models of Curved Beams,” in 37th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida, United states, 2019.

M. S. Allen and J. W. Sills, “Historical Review of ‘Building Block Approach’ in Validation for Human Space Flight,” in 37th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida, United states, 2019.

M. Wall, M. S. Allen, and I. Zare, “Predicting S4 Beam Joint Nonlinearity using Quasi-Static Modal Analysis,” in 37th International Modal Analysis Conference (IMAC XXXVII), Orlando, Florida, United states, 2019.

M. S. Allen and R. L. Mayes, “Recent Advances to Estimation of Fixed-Interface Modal Models using Dynamic Substructuring,” in 36th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida 2018.

D. Piombino, M. S. Allen, “System Identification to Estimate the Nonlinear Modes of a Gong,” in 36th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida 2018.

A. Singh, M. Scapolan, Y. Saito, M. S. Allen, D. Roettgen, B. Pacini, R. J. Kuether, “Experimental Characterization of a new Benchmark Structure for Prediction of Damping Nonlinearity,” in 36th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida, 2018.

A. Singh, M. S. Allen, W. J. DeLima, “Multi–Input Multi–Output Active Vibration Control for High Frequency Random Vibration,” in 36th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida, 2018.

S .I. Zare. E, M. S. Allen, E. Jewell, “An Enhanced Static Reduction Algorithm for Predictive Modeling of Bolted Joints,” in 36th International Modal Analysis Conference (IMAC XXXVI), Orlando, Florida, 2018.

J. D. Schoneman, C. Ostoich, L. Jarman, C. Van Damme and M.S. Allen, “Linear and Nonlinear Reduced-Order Modeling for Hypersonic Panel Flutter,” 59th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, Orlando, Florida, Jan 8-12, 2018.

J. D. Schoneman, M. S. Allen, R. J. Kuether, “Nonlinear Modal Substructuring of Panel and Stiffener Assemblies via Characteristic Constraint Modes,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

D. A. Ehrhardt, M. S. Allen & T. Beberniss, “The Measurement of Nonlinear Resonant Decay using Continuous-scan Laser Doppler Vibrometry,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

L. Wu, D. Krattiger, M. Zacharczuk, M. Buck, R. J. Kuether, M. S. Allen, M. R. W. Brake, P. Tiso, “Evaluation of Interface Reduction Methods for Craig Bampton Models,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

S.B. Cooper, M. Rosatello, A.T. Mathis, K. Johnson, M.R.W. Brake, M.S. Allen, A.A. Ferri, D.R. Roettgen, B.R. Pacini, R.L. Mayes, “Effect of Far-Field Structure on Joint Properties,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

D. Roettgen, M. S. Allen, D. C. Kammer, and R. L. Mayes, “Substructuring of a nonlinear beam using a modal Iwan framework,  Part I: Nonlinear Modal Model Identification,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

D. Roettgen, M. S. Allen, D. C. Kammer, and R. L. Mayes, “Substructuring of a nonlinear beam using a modal Iwan framework,  Part II: Nonlinear Modal Substructuring,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

C. I. VanDamme & M. S. Allen, “Nonlinear Normal Modes of a Curved Beam and its Response to Random Loading,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

E. Jewell, M. S. Allen, and R. Lacayo, “Predicting damping of a cantilever beam with a bolted joint using quasi-static modal analysis,” in Proceedings of the ASME 2017 International Design Engineering Technical Conference & 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control IDETC/ MSNDC 2017 Cleveland, Ohio, USA, 2017.

L. M. Jarman, C. VanDamme, and M. S. Allen, “Nonlinear Dynamic Analysis of a Thermally Buckled Aircraft Panel Using NNMs,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

R.M. Lacayo, L. Pesaresi, D. Fochler, J. Gross, J. Armand, L. Salles, M. R. W. Brake, and C.W. Schwingshackl, “A Comparison of Numerical Approaches for Predicting the Dynamics of a Beam with a Lap Joint,” in 35th International Modal Analysis Conference (IMAC XXXV), Garden Grove, California, 2017.

M. S. Allen, R. Lacayo, and M. R. W. Brake, “Quasi-static Modal Analysis based on Implicit Condensation for Structures with Nonlinear Joints,” in International Seminar on Modal Analysis (ISMA) Leuven, Belgium, 2016.

M. S. Allen, D. R. Roettgen, D. C. Kammer, and R. L. Mayes, “Experimental Modal Substructuring with Nonlinear Modal Iwan Models to Capture Nonlinear Subcomponent Damping,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

D. A. Ehrhardt and M. S. Allen, “Nonlinear Reduced Order Modeling of a Curved Axi-symmetric Perforated Plate: Comparison with Experiments,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

D. R. Roettgen, B. Seeger, W. C. Tai, S. Baek, T. Dossogne, M. S. Allen, R. J. Kuether, M. R. Brake, and R. L. Mayes, “A Comparison of Reduced Order Modeling Techniques Used in Dynamic Substructuring,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

J. D. Schoneman and M. S. Allen, “Investigating Nonlinear Modal Energy Transfer in a Random Load Environment,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

J. D. Schoneman and M. S. Allen, “Modal Test and Parameter Updating of Metal Laser Sintered Components,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

M. Stender, A. Papangelo, M. S. Allen, M. R. Brake, C. W. Schwingshackl, and M. Tiedemann, “Structural Design with Joints for Maximum Dissipation,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

D. Tcherniak and M. S. Allen, “Experimental dynamic characterization of operating wind turbines with anisotropic rotor,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

C. I. VanDamme and M. S. Allen, “Using NNMs to Evaluate Reduced Order Models of Curved Beam,” in 34th International Modal Analysis Conference (IMAC XXXIV) Orlando, Florida, 2016.

J. Franz, C. Francis, M. S. Allen, and D. G. Thelen, “Visuomotor entrainment and the control of balance in walking,” in IEEE 2016 Biomechanics and Neural Control of Movement (BANCOM) Conference Sterling, OH 2016

S. J. Kelly, M. S. Allen, and H. A. Ardeh, “Multi-Point Multi-Harmonic Collocation With Continuation To Compute Branches Of Nonlinear Modes Of Structural Systems,” in ASME 2015 International Design Engineering Technical Conference Boston, MA, 2015

D. J. Segalman, M. S. Allen, M. Eriten, and K. Hoppmann, “Experimental Assessment of Joint-Like Modal Models for Structures,” in ASME 2015 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2015 Boston, MA, 2015

L. C. M. Guerin, R. J. Kuether, and M. S. Allen, “Considerations for Indirect Parameter Estimation in Nonlinear Reduced Order Models,” in 33rd International Modal Analysis Conference (IMAC XXXIII) Orlando, Florida, 2015.

R. J. Kuether and M. S. Allen, “Validation of Nonlinear Reduced Order Models with Time Integration Targeted at Nonlinear Normal Modes,” in 33rd International Modal Analysis Conference (IMAC XXXIII) Orlando, Florida, 2015.

D. R. Roettgen and M. S. Allen, “Experimental Dynamic Substructuring of a Catalytic Converter System using the Transmission Simulator Method,” in 33rd International Modal Analysis Conference (IMAC XXXIII) Orlando, Florida, 2015.

D. A. Ehrhardt, S. Yang, T. Beberniss, and M. S. Allen, “Linear and Nonlinear Response of a Flat Rectangular Plate Measured with Continuous-Scan Laser Doppler Vibrometry and 3D-Digital Image Correlation,” in 33rd International Modal Analysis Conference (IMAC XXXIII) Orlando, Florida, 2015.

D. A. Ehrhardt and M. S. Allen, “Measurement of Nonlinear Normal Modes Using Mono-harmonic Force Appropriation: Experimental Investigation,” in 33rd International Modal Analysis Conference (IMAC XXXIII) Orlando, Florida, 2015.

M. S. Allen and B. Weekes, “Nonlinear Model Updating of a Flat Plate and a Stiffened Skin Panel from a Lynx Helicopter,” in Scitech 2015, 56th AIAA Structures, Structural Dynamics and Materials Conference Kissimmee, Florida, 2015.

D. A. Ehrhardt, R. J. Kuether, and M. S. Allen, “Nonlinear Normal Modes in Finite Element Model Validation of Geometrically Nonlinear Flat and Curved Beams,” in Scitech 2015, 56th AIAA Structures, Structural Dynamics and Materials Conference Kissimmee, Florida, 2015.

  M. S. Allen, J. B. Blecke, and D. R. Roettgen, “A Wiki for Sharing Substructuring Methods, Measurements and Information,” presented at the 32nd International Modal Analysis Conference (IMAC XXXII), Orlando, Florida, 2014.

  R. J. Kuether, M. R. Brake, and M. S. Allen, “Evaluating Convergence of Reduced Order Models Using Nonlinear Normal Modes,” presented at the 32nd International Modal Analysis Conference (IMAC XXXII), Orlando, Florida, 2014.

  R. J. Kuether and M. S. Allen, “Craig-Bampton Substructuring for Geometrically Nonlinear Subcomponents,” presented at the 32nd International Modal Analysis Conference (IMAC XXXII), Orlando, Florida, 2014.

  D. A. Ehrhardt, R. A. Harris, and M. S. Allen, “Numerical and Experimental Determination of Nonlinear Normal Modes of a Circular Perforated Plate,” presented at the 32nd International Modal Analysis Conference (IMAC XXXII), Orlando, Florida, 2014.

   D. A. Ehrhardt, S. Yang, T. J. Beberniss, and M. S. Allen, “Mode Shape Comparison Using Continuous-scan Laser Doppler Vibrometry and High Speed 3D Digital Image Correlation,” presented at the 32nd International Modal Analysis Conference (IMAC XXXII), Orlando, Florida, 2014.

   M. S. Allen, D. C. Kammer, and R. L. Mayes, “Experimental Based Substructuring Using a Craig-Bampton Transmission Simulator Model,” presented at the 32nd International Modal Analysis Conference (IMAC XXXII), Orlando, Florida, 2014.

   S. Yang, D. Tcherniak, and M. S. Allen, “Modal Analysis of Rotating Wind Turbine using Multiblade Coordinate Transformation and Harmonic Power Spectrum,” presented at the 32nd International Modal Analysis Conference, Orlando, Florida, 2014.

  J. D. Schoneman, M. S. Allen, and R. J. Kuether, “Relationships between Nonlinear Normal Modes and Response to Random Inputs,” presented at the 5th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Maryland, 2014.

  R. J. Kuether and M. S. Allen, “Substructuring with Nonlinear Reduced Order Models and Interface Reduction  with Characteristic Constraint Modes,” presented at the 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Maryland, 2014.

   B. Deaner, M. S. Allen, M. J. Starr, and D. J. Segalman, “Application of Viscous and Iwan Modal Damping Models to Experimental Measurements from Bolted Structures,” presented at the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2013, Portland, Oregon, USA, 2013.

  B. Deaner, M. S. Allen, M. J. Starr, and D. J. Segalman, “Investigation of Modal Iwan Models for Structures with Bolted Joints,” presented at the 31st International Modal Analysis Conference (IMAC XXXI), Garden Grove, CA, 2013.

  R. J. Kuether and M. S. Allen, “Structural Modification of Nonlinear FEA Subcomponents Using Nonlinear Normal Modes,” presented at the 31st International Modal Analysis Conference (IMAC XXXI), Garden Grove, CA, 2013.

  S. Yang and M. S. Allen, “Transfer Functions to Measure Translational and Rotational Velocities with Continuous-Scan Laser Doppler Vibrometry,” presented at the 31st International Modal Analysis Conference (IMAC XXXI), Garden Grove, CA, 2013.

  H. A. Ardeh and M. S. Allen, “Investigating Cases of Jump Phenomenon in a Nonlinear Oscillatory System,” presented at the 31st International Modal Analysis Conference (IMAC XXXI), Garden Grove, CA, 2013.

  M. S. Allen, “Exploring Experimental Structural Dynamics in EMA/ME 540 at UW-Madison,” presented at the 31st International Modal Analysis Conference (IMAC XXXI), Garden Grove, 2013.

  M. W. Sracic, M. S. Allen, and H. Sumali, “Identifying the modal properties of nonlinear structures using measured free response time histories from a scanning laser Doppler vibrometer,” in 30th International Modal Analysis Conference Jacksonville, Florida, 2012.

  M. W. Sracic, S. Yang, and M. S. Allen, “Comparing Measured and Computed Nonlinear Frequency Responses to Calibrate Nonlinear System Models,” in 30th International Modal Analysis Conference Jacksonville, Florida, 2012.

  M. S. Allen and R. J. Kuether, “Substructuring with Nonlinear Subcomponents: A Nonlinear Normal Mode Perspective,” in 30th International Modal Analysis Conference Jacksonville, Forida, 2012.

  M. S. Allen and D. C. Kammer, “Simple Experiments to Validate Modal Substructure Models,” in 30th International Modal Analysis Conference Jacksonville, Florida, 2012.

  S. Seidlitz, R. J. Kuether, and M. S. Allen, “Comparison of Noise Floors of Various Torsional Vibration Sensors,” in 30th International Modal Analysis Conference Jacksonville, Florida, 2012.

  R. L. Mayes, M. S. Allen, and D. C. Kammer, “Eliminating Indefinite Mass Matrices with the Transmission Simulator Method of Substructuring,” in 30th International Modal Analysis Conference Jacksonville, Florida, 2012.

  M. S. Allen, R. J. Kuether, B. Deaner & M. W. Sracic, “A Numerical Continuation Method to Compute Nonlinear Normal Modes Using Modal Reduction,” 53rd AIAA Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, April 23-26, 2012.

  S. Yang & M. S. Allen, “A Lifting Algorithm for Output-only Continuous Scan Laser Doppler Vibrometry,” 53rd AIAA Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, April 23-26, 2012.

  R. L. Mayes and M. S. Allen, “Converting a Driven Base Vibration Test to a Fixed Base Modal Analysis,” in 29th International Modal Analysis Conference (IMAC XXIX) Jacksonville, Florida, 2011.

  M. W. Sracic and M. S. Allen, “Identifying parameters of nonlinear structural dynamic systems using linear time-periodic approximations,” in 29th International Modal Analysis Conference (IMAC XXIX) Jacksonville, Florida, 2011.

  M. W. Sracic and M. S. Allen, “Numerical Continuation of Periodic Orbits for Harmonically Forced Nonlinear Systems” in 29th International Modal Analysis Conference (IMAC XXIX) Jacksonville, Florida, 2011.

  S. Yang and M. S. Allen, “Output-Only Modal Analysis Using Continuous-Scan Laser Doppler Vibrometry and Application to a 20kW Wind Turbine,” 29th International Modal Analysis Conference (IMAC XXIX) Jacksonville, Florida, 2011.

  M. S. Allen, S. Chauhan, and M. H. Hansen, “Advanced Operational Modal Analysis Methods for Linear Time Periodic System Identification,” in 29th International Modal Analysis Conference (IMAC XXIX) Jacksonville, Florida, 2011.

  M. S. Allen, D. C. Kammer, and R. L. Mayes, “Metrics for Diagnosing Negative Mass and Stiffness when Uncoupling Experimental and Analytical Substructures,” in 29th International Modal Analysis Conference (IMAC XXIX) Jacksonville, Florida, 2011.

  M. S. Allen, D. C. Kammer, and R. L. Mayes, “Uncertainty in Experimental/Analytical Substructuring Predictions:  A Review with Illustrative Examples,” International Seminar on Modal Analysis (ISMA), Leuven, Belgium, Sept. 20-22, 2010.

  A. Gasparoni, M. S. Allen, S. Yang, M. W. Sracic, P. Castellini, and E. P. Tomasini, “Experimental Modal Analysis on a Rotating Fan Using Tracking-CSLDV,” in 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques Ancona, Italy, 2010.

  A. Gasparoni, M. S. Allen, S. Yang, M. W. Sracic, P. Castellini & E. P. Tomasini, “Experimental Modal Analysis on a Rotating Fan Using Tracking-CSLDV,” in 9th International Conference on Vibration Measurements by Laser Techniques, Ancona, Italy, 2010.

M. S. Allen, H. M. Gindlin & R. L. Mayes, “Experimental Modal Substructuring to Extract Fixed-Base Modes from a Substructure Attached to a Flexible Fixture,” 28th International Modal Analysis Conference (IMAC XXVIII), Jacksonville, Florida, Feb. 1-4, 2010.

H. Frentrup & M. S. Allen, “Error quantification in calibration of AFM probes due to non-uniform cantilevers,” 28th International Modal Analysis Conference (IMAC XXVIII), Jacksonville, Florida, Feb. 1-4, 2010.

M. S. Allen, M. W. Sracic, S. Chauhan & M. H. Morten, “Output-Only Modal Analysis of Linear Time Periodic Systems with Application to Wind Turbine Simulation Data,” 28th International Modal Analysis Conference (IMAC XXVIII), Jacksonville, Florida, Feb. 1-4, 2010.

  M. S. Allen & M. W. Sracic, “System Identification of Dynamic Systems with Cubic Nonlinearities Using Linear Time-Periodic Approximations,” ASME 2009 International Design Engineering Technical Conference IDETC, San Diego, California, Aug. 30-Sept. 2, 2009.

M. S. Allen & D. M. Aguilar, “Model Validation of a Bolted Beam Using Spatially Detailed Mode Shapes Measured by Continuous-Scan Laser Doppler Vibrometry,” 50th AIAA Structures, Structural Dynamics, and Materials Conference, Palm Springs, California, May 4-7, 2009.

  M. S. Allen & J. A. Camberos, “Comparison of Uncertainty Propagation / Response Surface Techniques for Two Aeroelastic Systems,” 50th AIAA Structures, Structural Dynamics, and Materials Conference, Palm Springs, California, May 4-7, 2009.

M. S. Allen, H. Sumali, and P. C. Penegor, “Effect of Tip Mass on Atomic Force Microscope Calibration by Thermal Tune Method,” in 27th International Modal Analysis Conference (IMAC XXVII), Orlando, Florida, Feb. 2009.

  M. W. Sracic & M. S. Allen, “Experimental Investigation of the Effect of Speckle Noise on Continuous Scan Laser Doppler Vibrometer Measurements,” in 27th International Modal Analysis Conference (IMAC XXVII), Orlando, Florida, Feb. 2009.

 M. S. Allen & R. L. Mayes, “Estimating the Degree of Nonlinearity in Transient Responses with Zeroed Early-time Fast Fourier Transforms,” in 27th International Modal Analysis Conference (IMAC XXVII), Orlando, Florida, Feb. 2009.

M. S. Allen & S. A. Miller, “Effect of Model Order Ambiguity in Experimental Modal Analysis on Substructuring Predictions,” in 27th International Modal Analysis Conference (IMAC XXVII), Orlando, Florida, Feb. 2009.

  M. S. Allen and M. W. Sracic, “Mass Normalized Mode Shapes Using Impact Excitation and Continuous-Scan Laser Doppler Vibrometry,” in 8th International Conference on Vibration Measurements by Laser Techniques, Ancona, Italy, 2008, pp. 7098-3.

 E. J. Bergman, M. S. Allen, and R. L. Mayes, “Sensitivity of Two Component Mode Synthesis Methods Applied to Addition and Subtraction of Substructures,” in 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference Schaumberg, IL, 2008.

M. S. Allen & M. W. Sracic, “A Method for Generating Pseudo Single-Point FRFs from Continuous Scan Laser Vibrometer Measurements,” 26th International Modal Analysis Conference (IMAC XXVI), Orlando, Florida, Feb. 2008.

E. J. Bergman, M. S. Allen, D. C. Kammer & R. L. Mayes, “Probabilistic Investigation of Sensitivities of Advanced Test-Analysis Model Correlation Methods,” 26th International Modal Analysis Conference (IMAC XXVI), Orlando, Florida, Feb. 2008.

M. S. Allen, H. Sumali & E. B. Locke, “Experimental/Analytical Evaluation of the Effect of Tip Mass on Atomic Force Microscope Calibration,” 26th International Modal Analysis Conference (IMAC XXVI), Orlando, Florida, Feb. 2008.

R. L. Mayes, P. S. Hunter, T. W. Simmermacher & M. S. Allen, “Combining Experimental and Analytical Substructures with Multiple Connections,” 26th International Modal Analysis Conference (IMAC XXVI), Orlando, Florida, Feb. 2008.

M. S. Allen, “Floquet Experimental Modal Analysis for System Identification of Linear Time-Periodic Systems,” ASME 2007 International Design Engineering Technical Conferences, IDETC/CIE 2007, Las Vegas, Nevada, USA, Sept. 4-7, 2007.

  M. S. Allen & R. L. Mayes, “Comparison of FRF and Modal Methods for Combining Experimental and Analytical Substructures,” 25th International Modal Analysis Conference (IMAC XXV), Orlando, Florida, Feb. 2007.

  M. S. Allen & R. L. Mayes, “Comparison of FRF and Modal Methods for Combining Experimental and Analytical Substructures,” 25th International Modal Analysis Conference (IMAC XXV), Orlando, Florida, Feb. 2006.

   M. S. Allen, J. E. Massad, and R. V. Field, Jr. “Modeling and input optimization under uncertainty for a collection of RF MEMS devices,” presented at 2006 ASME Congress in Chicago, IL, November 2006.

  M. S. Allen, H.. Sumali & D. S. Epp, “Restoring Force Surface Analysis of Nonlinear Vibration data from Micro-Cantilever Beams,” presented at 2006 ASME Congress in Chicago, IL, November 2006.

   M. S. Allen and T. G. Carne, “Comparison of Inverse Structural Filter (ISF) and Sum of Weighted Accelerations (SWAT) Time Domain Force Identification Methods,” presented at the 47th AIAA-ASME-ASCE-AHS-ASC Structures, Structural Dynamics, and Materials Conference, Newport, Rhode Island, May 2006.

  M. S. Allen and J. H. Ginsberg, “Floquet Modal Analysis to Detect Cracks in a Rotating Shaft on Anisotropic Supports,” 24th International Modal Analysis Conference (IMAC XXIV), St. Louis Missouri, Feb. 2006.

  M. S. Allen and J. H. Ginsberg, “Global, Hybrid, MIMO Implementation of the Algorithm of Mode Isolation,” 23rd International Modal Analysis Conference (IMAC XXIII), Orlando, Florida, 2005.

   M. S. Allen, J. H. Ginsberg, and A. Ferri, “Modal Identification of the Z24 Bridge Using MIMO-AMI,” 23rd International Modal Analysis Conference (IMAC XXIII), Orlando, Florida, 2005.

    M. S. Allen and J. H. Ginsberg, “SIMO Extension of the Algorithm of Mode Isolation,” presented at the 22nd International Modal Analysis Conference (IMAC XXII), Dearborn, Michigan, 2004.

  J. H. Ginsberg and M. S. Allen, “Recent Improvements of the Algorithm of Mode Isolation,” presented at Proceedings of IMECE’03, ASME International Mechanical Engineering Congress and Exposition, NCA, Washington, DC, 2003.

  M. S. Allen, C. Moloney, J. H. Ginsberg, and A. Ferri, “Comparison of a Linear Least Squares Algorithm and STAR Modal for a Square Elastic Plate,” presented at the 21st International Modal Analysis Conference (IMAC XXI), Orlando, Florida, 2003.

   J. H. Ginsberg, M. S. Allen, A. Ferri, and C. Moloney, “A General Linear Least Squares SDOF Algorithm for Identifying Eigenvalues and Residues,” presented at the 21st International Modal Analysis Conference (IMAC XXI), Orlando, Florida, 2003.

   W. F. Pratt, S. Sommerfeldt and M. Allen, “Testing and Characterization of Wavy Composites,” Science of Advanced Materials and Process Engineering Series, 45, Book 1, 216-228, 2001.

   W. F. Pratt, M. Allen and C. G. Jensen, “Designing with Wavy Composites,” Science of Advanced Materials and Process Engineering Series, 45, Book 1, 203-215, 2001.

   W. F. Pratt and M. S. Allen, “Characterization and Finite Element Model Correlation of Wavy Composites,” 33rd International SAMPE Technical Conference, Seattle, WA, 2001.

   W. F. Pratt and M. S. Allen, “Testing and Characterization of Highly Damped Structural Materials,” 33rd International SAMPE Technical Conference, Seattle, WA, (2001).

Doctoral Theses

  M. S. Allen, “Global and Multi-Input-Multi-Output (MIMO) Extensions of the Algorithm of Mode Isolation (AMI),” George  W. Woodruff  School of Mechanical Engineering. Atlanta, Georgia, Georgia Institute of Technology: 128 pages, 2005.  (Local Link here.)

Invited Presentations

“Numerical Computation of Nonlinear Normal Modes for Geometrically Nonlinear Finite Element Models with Application to Substructuring and Model Validation,” Ohio State University, Oct. 3, 2014.

“Modeling the Nonlinear Damping of Jointed Structures using Iwan Models: Discrete & Modal ,” Sandia National Laboratories, Joints Institute, July 2014.

“Numerical Computation of Nonlinear Normal Modes for Geometrically Nonlinear Finite Element Models with Application to Substructuring and Model Validation,” Imperial College, London, May 28, 2014.

“Numerical Computation of Nonlinear Normal Modes for Geometrically Nonlinear Finite Element Models with Application to Substructuring and Model Validation,” University of Sheffield, May 21, 2014.

“Numerical Computation of Nonlinear Normal Modes for Geometrically Nonlinear Finite Element Models with Application to Substructuring and Model Validation,” University of Bristol, May 14, 2014.

“An Overview of Substructuring Research at the University of Wisconsin,” Lindberg Lecture Series, Mechanical Engineering Department, University of Wisconsin-Madison, March, 2013.

“Response Prediction for Structural Dynamic Systems with Experimental-Analytical Substructuring,” Engineering Physics Department Colloquium, University of Wisconsin-Madison, February, 2013.

“System Identification for Linear Time Varying Systems with Application to Rotating Turbines and Continuous Scan Laser Vibrometry,” Wind Turbine Blade Workshop, Albuquerque, NM, June 1, 2012.

“Frequency-Domain System Identification for Linear Time-Periodic Systems with Application to Wind Turbine Dynamics and CSLDV,” Brüel & Kjær Sound & Vibration Measurement, Copenhagen, Denmark, May 30, 2012.

“Nonlinear Normal Modes for Geometrically Nonlinear Structures: Computation Methods and Implications for Substructuring,” Department of Mechanical and Aerospace Engineering, University of Liege, Liege, Belgium, May 29, 2012.

“Frequency-Domain System Identification for Linear Time-Periodic Systems with Application to Wind Turbine Dynamics and CSLDV,” Department of Mechanical Engineering, Chalmers University, Gothenburg, Sweden, May 24, 2012.

“Overview of Substructuring, the Transmission Simulator Method and Dynamics Research at UW-Madison,” Presentation delivered via teleconference to General Motors, Milford Proving Ground, Milford, MI, March 3, 2012.

“Geometric Nonlinearity and Nonlinear Modes: Potential Applications to Exhaust Components,” Presentation delivered via teleconference to Cummins Emissions Solutions, Stoughton, WI, Feb. 20, 2012.

“From Lasers to Wind Turbines: Frequency-Domain System Identification for Linear Time-Periodic Systems,” University of Maryland, Baltimore County, Department of Mechanical Engineering, December, 2011.

“Experimental Modal Substructuring to Estimate Fixed-Base Modes from Tests on a Flexible Fixture,” Trane / Ingersol Rand Inc., Lacrosse, WI, March, 2011.

“From Lasers to Wind Turbines: Frequency-Domain System Identification for Linear Time-Periodic Systems,” Washington University at Saint Louis, October, 2010.

“From Lasers to Wind Turbines: Frequency-Domain System Identification for Linear Time-Periodic Systems,” Rheology Research Center, University of Wisconsin-Madison, February, 2010.

“Accelerated Vibration Testing using Continuous-Scan Laser Doppler Vibrometry (CSLDV),” WARF First Look Forum, April, 2009.

“System Identification and Uncertainty in Dynamic Systems”, Invited presentation to College of Engineering, Marquette University, Milwaukee, WI, September 2008

“Comparison of Uncertainty Propagation / Response Surface Techniques for Two Aeroelastic Systems,” Air Force Research Laboratory, Dayton, OH, August, 2008.

“Overview of Research in System Identification and Continuous-Scan Laser Doppoler Vibrometry,” ATA Engineering, Madison, WI, March 2008.

“Mechanics Research in the Dept. of Engineering Physics,” Exelon Nuclear, Chicago, IL, October 2007.

“Effect of Uncertainty on Test-Analysis Model Correlation,” Air Force Research Laboratory, Kirtland AFB, Albuquerque, NM, 2007.

“Overview of Research in M.S. Allen Group: System Identification and Uncertainty in Dynamic Systems,” Trane / Ingersol Rand Inc., Lacrosse, WI, April 2007

  M. S. Allen, “A Multi-Input-Multi-Output (MIMO) Version of the Algorithm of Mode Isolation (AMI),” presented at the 150th Meeting of the Acoustical Society of America, Minneapolis, Minnesota, October 2005.

Presentations

Zare, M. S. Allen, “Computing Nonlinear Frequency Response Functions (FRFs) for Systems with Iwan Joints,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

A. Schumann, M. S. Allen, W. J. DeLima, E. Dodgen, “Transmission Simulator Based MIMO Response Reconstruction for Vehicle Subcomponents,” 38th International Modal Analysis Conference (IMAC XXXVIII), Houston, Texas, February 10-13, 2020.

M. S. Allen, D. M. Aguilar, M. W. Sracic & S. Yang, “2D Continuous-Scan Laser Doppler Vibrometry Applied to Condenser Fan,” 158th Meeting of the Acoustical Society of America, San Antonio, Texas, Oct. 2009.

  M. S. Allen and J. H. Ginsberg, “On the Accuracy of Modal Parameters Identified from Exponentially Windowed, Noise Contaminated Impulse Responses for a System with a Large Range of Decay Constants.” 148th Meeting of the Acoustical Society of America, San Diego, California, Nov. 2005.  (Received the “Best Student Paper Award.”)