Effects of a clutch&rsquo;s axial nonlinear characteristics on its release forces and displacements

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (19) : 217-224.

Effects of a clutch’s axial nonlinear characteristics on its release forces and displacements

WAN Lixiang1, LIU Xuelai2, CHEN Quanrui1, HOU Qiufeng3, ZHANG Chen3, WANG Shannan3, SHANGGUAN Wenbin2

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Abstract

The relationship between a clutch’s release force-displacement curve and its pedal force-displacement one was analyzed.The finite element (FE) model for estimating the clutch release force-displacement characteristics was built.The FE model contained the clutch’s pressure plate assembly and the driven disc one considering axial nonlinear characteristics of diaphragm spring and wave plate.Using the established model, the clutch’s release force-displacement curve was calculated.This curve was also measured with a test rig.The calculated results were compared with test ones to validate the correctness of the established model.The effects of diaphragm spring’s working point position and wave plate’s axial stiffness on the clutch’s release force-displacement curve were analyzed to improve the clutch’s pedal force-displacement characteristics.A clutch’s control system test platform was adopted to measure the clutch’s pedal force-displacement curve, and the test results verified the correctness of the calculated ones for improving the clutch’s pedal force-displacement characteristics.

Key words

clutch；release force-displacement；pedal force-displacement；Diaphragm spring / wave plate

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WAN Lixiang1, LIU Xuelai2, CHEN Quanrui1, HOU Qiufeng3, ZHANG Chen3, WANG Shannan3, SHANGGUAN Wenbin2. Effects of a clutch’s axial nonlinear characteristics on its release forces and displacements[J]. Journal of Vibration and Shock, 2018, 37(19): 217-224

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