A description is given of the results obtained for step excitation for two human knee joint specimens using a time-domain analysis technique. As was expected from the results of a previous study, the magnitude of the dynamic load applied has a marked influence upon the stiffness and damping values for the two observed vibration modes. Deliberate damaging of selected joint elements also yields a well observable change in the dynamic behavior of the joint although these changes are difficult to interpret. Here the use of a nonlinear dynamic numerical model of the knee joint seems indispensable. An important observation is, however, that the experimental method discussed here enables to quantify the behavior of the joint and therefore may provide a valuable tool for validation of such a model.
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November 1991
Research Papers
Nonlinear Dynamic Behavior of the Human Knee Joint—Part II: Time-Domain Analyses: Effects of Structural Damage in Postmortem Experiments
Dortmans,
Dortmans
Eindhoven University of Technology, Eindhoven, The Netherlands
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H. Jans,
H. Jans
Eindhoven University of Technology, Eindhoven, The Netherlands
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A. Sauren,
A. Sauren
Eindhoven University of Technology, Eindhoven, The Netherlands
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A. Huson
A. Huson
Eindhoven University of Technology, Eindhoven, The Netherlands
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Dortmans
Eindhoven University of Technology, Eindhoven, The Netherlands
H. Jans
Eindhoven University of Technology, Eindhoven, The Netherlands
A. Sauren
Eindhoven University of Technology, Eindhoven, The Netherlands
A. Huson
Eindhoven University of Technology, Eindhoven, The Netherlands
J Biomech Eng. Nov 1991, 113(4): 392-396 (5 pages)
Published Online: November 1, 1991
Article history
Received:
March 1, 1990
Revised:
January 15, 1991
Online:
March 17, 2008
Citation
Dortmans, Jans, H., Sauren, A., and Huson, A. (November 1, 1991). "Nonlinear Dynamic Behavior of the Human Knee Joint—Part II: Time-Domain Analyses: Effects of Structural Damage in Postmortem Experiments." ASME. J Biomech Eng. November 1991; 113(4): 392–396. https://doi.org/10.1115/1.2895417
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