Study on dynamic characteristics of mechanisms with clearance joint

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (7) : 110-115.

WANG Xu-peng1, 2, LIU Geng1，MA Shang-jun1

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Abstract

In order to study the dynamic characteristics of mechanisms with revolute clearance joint, an improved nonlinear contact model is established in this paper, the axial dimension is introduced into the model, and the friction force in clearance joints is performed using a modified Coulomb friction model. As an example, a slider-crank mechanism is presented to demonstrate the dynamics characteristics, with different clearance size, input torque and friction parameter. The results based on the improved nonlinear contact model and the modified Coulomb friction model, showed that simulation results were in good agreement with the experimental results, which can accurately and effectively describe the dynamic characteristics of mechanisms with clearance joint.

Key words

revolute clearance joint / contact force model / friction model / dynamic characteristics

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WANG Xu-peng1, 2, LIU Geng1，MA Shang-jun1. Study on dynamic characteristics of mechanisms with clearance joint[J]. Journal of Vibration and Shock, 2016, 35(7): 110-115

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