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因摩擦温度分布不均匀而导致的对偶钢盘产生径向裂纹，是湿式多片制动器遭到破坏的主要原因之一。通过对湿式多片制动器在紧急制动工况下瞬态热应力场的有限元分析计算，揭示出热应力在对偶钢盘横截面内的分布规律，提出了防止湿式多片制动器发生上述破坏的一些措施，并对对偶钢盘部分热应力点进行了试验验证。
Radial cracking of the dual steel disc caused by the uneven distribution of the friction temperature is one of the main causes of the wet multi-plate brake being damaged. Through the finite element analysis of the transient thermal stress field of the wet multi-disc brakes in the emergency braking condition, the distribution of thermal stress in the cross-section of the dual disc steel is revealed and the preventive measures to prevent the wet multi-disc brakes from being damaged Some measures, and test the thermal stress point of the dual steel plate.