滚动-滑动表面接触温度解析中边界元方法的研究

滚动滑动表面的接触温度由瞬时温升和本体温度组成.本文将物体边界划分为基本元,又将热源划分并使其为移动元,由此求出瞬时温升.对于本体温度,则考虑了被反复加热物体内残留温度的上升,用瞬息传热的边界元法求得了本体温度的变化过程.

A Contact Temperature Analysis on Rolling/Sliding Surfaces by the Boundary Element Method

The contact temperature is the sum of the instantaneous temperature rise (TR) and bulk temperature. The calculation of instantaneous TR by the classical method is the solution for a problem in which a heat source is moved along a semi-infinite surface. In order to find the instantaneous TR, the boundary of the body is divided into elements known as basic elements. The heat source is also divided into elements known as moving elements. For the bulk temperature, so far studies have been made only on bulk temperature in the steady state. In this paper, the residual TR in a repetitively heated body is considered and the bulk temperature is found as a transient heat transfer problem based on BEM. The variation of the bulk temperature with time is obtained.