DCT变速器的离合器热负荷特性仿真分析

双离合自动变速器在工作过程中，由于离合器摩擦片在滑动摩擦过程中产生的热量会导致摩擦片失效。文中针对变速器的摩擦片进行热负荷仿真分析，借助摩擦副的热流密度模型，通过UG建立了摩擦副的有限元模型，基于ANSYS Workbench分析了摩擦副的油槽宽度和厚度对接合过程中摩擦片瞬态温度场的作用，得到了摩擦副温度场的变化规律。研究结果表明，接合过程中摩擦片表面温度随着径向距离的增加而升高，摩擦片的高温部分集中在摩擦片表面的外边缘附近，但在外边缘处温度下降，槽宽和厚度对润滑油的对流换热有一定影响。

Simulation of Thermal Load of the Dual Clutches of Dual Clutch Transmission

The friction pair during sliding friction process produce the large amount of heat will cause the thermal failure during the gear box engagement. The article does research on the thermal load of the dual clutch transmission, firstly based on the help of the paper studied the friction pair heat flux model and established an finite element model of the friction pair by UG, This paper also analyze the effect of the width of the groove and the thickness of the friction pair on the transient temperature field by ANSYS Workbench and reveals the change rule of temperature field. Simulation results showed that the temperature of each point on the friction pair increased as the radial distance away from the clutch shaft，and the high temperature zones are near the outer radius of friction pair．However，the temperature dropped when at the largest radius. The different groove width and thickness of the friction have influence in the on the convection heat transfer in a lubricating oil.