盘式制动器热弹性不稳定性的有限元分析

Finite Element Method of Thermoelastic Instability of Disc Brakes

采用有限元分析法分析盘式制动器热弹性不稳定性,建立了三维盘式制动器热力学分析模型,基于交错接触的中间处理器用来交换结果数据:温度,摩擦接触力,位移和变形。对制动盘的厚度变化(DTV)和温度的分布进行了计算,验证了有限元模型的可靠性,并确认了计算方案。为盘式制动器的选材、结构设计以及磨损提供了理论依据,对制动的振动和噪声研究有很好的工程使用价值。

The thermoelastic instability （TED was analyzed using the finite element analysis technique. The governing dynamic and heat equations were described. Three dimensional thermo- mechanical analysis model of the disc brake system was created. An intermediate processor based on the staggered approach was used to exchange result data： temperature, friction contact power, nodal displacement and deformation. Disc thickness variation （DTV） and temperature distribu tion of the disc were calculated, and the tendency and meaning of each result were discussed.