A continuous contact force model for the impact analysis of a two-particle collision is presented. The model uses the general trend of the Hertz contact law. A hysteresis damping function is incorporated in the model which represents the dissipated energy in impact. The parameters in the model are determined, and the validity of the model is established. The model is then generalized to the impact analysis between two bodies of a multibody system. A continuous analysis is performed using the equations of motion of either the multibody system or an equivalent two-particle model of the colliding bodies. For the latter, the concept of effective mass is presented in order to compensate for the effects of joint forces in the system. For illustration, the impact situation between a slider-crank mechanism and another sliding block is considered.
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September 1990
Research Papers
A Contact Force Model With Hysteresis Damping for Impact Analysis of Multibody Systems
H. M. Lankarani,
H. M. Lankarani
Mechanical Engineering Department, The Wichita State University, Wichita, KS 67208
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P. E. Nikravesh
P. E. Nikravesh
Computer-Aided Engineering Laboratory, Aerospace and Mechanical Engineering Department, University of Arizona, Tucson, AZ 85721
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H. M. Lankarani
Mechanical Engineering Department, The Wichita State University, Wichita, KS 67208
P. E. Nikravesh
Computer-Aided Engineering Laboratory, Aerospace and Mechanical Engineering Department, University of Arizona, Tucson, AZ 85721
J. Mech. Des. Sep 1990, 112(3): 369-376 (8 pages)
Published Online: September 1, 1990
Article history
Received:
February 1, 1989
Revised:
May 1, 1989
Online:
June 2, 2008
Citation
Lankarani, H. M., and Nikravesh, P. E. (September 1, 1990). "A Contact Force Model With Hysteresis Damping for Impact Analysis of Multibody Systems." ASME. J. Mech. Des. September 1990; 112(3): 369–376. https://doi.org/10.1115/1.2912617
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