焊接准稳态传热问题的边界积分方程解法

On the Boundary Integral Equations for Quasi-steady Heat Transfer Problems of Welding

本文从固体传热的基本微分方程出发,给出了两类焊接准稳态传热问题,即在恒定焊接热源和周期性焊接热源作用下的焊接传热问题的三维边界积分方程表达式,提出了在焊接条件下边界条件的特殊处理方法,为焊接准稳态传热问题的边界元分析提供了基础。

Starting from the basic differential equation of solid heat transfer, the 3-D boundary integral equations are developed for two problems of welding heat transfer under constant: heat source and periodic heat source, together with the proposal of special treatment of their boundary conditions, which lay a foundation for the boundary element analysis of quasi-steady heat transfer problems of welding.