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文中利用有限元方法,使用有限元软件ABAQUS,针对某公司生产的Φ430干式膜片弹簧离合器,为了解决其在使用中出现的压盘变形、烧蚀和开裂等现象,对压盘不同载荷下起步工况进行了温度场和热应力耦合仿真。建立了压盘几何模型,划分了有限元网格,依据不同工况施加了边界条件,最后求解了压盘温度场和应力场分布云图。结果表明,压盘应力危险点集中在摩擦面外沿,在极限重载工况下,其强度安全系数不足是导致异常损坏的主要原因。分析结论对于解决部分零件提前失效的问题以及改善离合器现存的可靠性问题具有明确的现实意义。
In this paper, using the finite element method, finite element software ABAQUS, for a company produced Φ430 dry-type diaphragm spring clutch, in order to solve its use in the pressure plate deformation, ablation and cracking phenomenon, the pressure plate under different loads Starting conditions were coupled with temperature field and thermal stress simulation. The pressure plate geometric model was established, the finite element mesh was divided, and the boundary conditions were imposed according to different working conditions. Finally, the temperature and stress field distribution charts of pressure plate were solved. The results show that the critical point of the stress of the pressure plate is concentrated on the outer edge of the friction surface. Under the condition of extreme heavy load, the lack of strength and safety factor is the main reason of the abnormal damage. The conclusion of the analysis has clear practical significance for solving the problem of early failure of some parts and improving the existing reliability of the clutch.