离合器压盘热变形与应力分析方法及其应用

A Method of and its Application to the Thermal Deformation and Stress Analyses for Clutch Pressure Plate

为解决离合器压盘在使用过程中的断裂问题,建立了离合器压盘热变形与应力的分析模型。建模中,考虑了波形片轴向非线性特性和摩擦因数随转速差的变化。利用模型对离合器压盘接合过程中的温度分布进行仿真分析,并通过实测验证模型的正确性。基于分析结果,提出压盘改进方案,并进行装车测试,离合器压盘未出现断裂情况,证明了本文的建模方法与分析过程的正确性。

To solve the fracture problem of clutch pressure plate,a model for analyzing the thermal deformation and stress of pressure plate is built with consideration of the changes in axial nonlinear characteristics of waved plate and friction coefficient with rotating speed difference. With the model,the temperature distribution during the engaging process of pressure plate is simulated and verified by real measurement. Based on analysis results,modification schemes for pressure plate are proposed,a sample part is produced and real vehicle test is performed with no fracture of pressure plate happened,demonstrating the correctness of modeling and analyses.