齿轮体积温度场的延拓边界元法

An Expanded Boundary Element Method for the Calculation of the Bulk Temperature Field in Gears

应用延拓边界元方法对渐开线圆柱齿轮体积温度场进行了计算并与经典边界元方法作了对比分析。研究表明，本方法采用等参数延拓边界元格式，不增加节点数，不改变输入数据，即可提高计算精度和计算效率。

The:solution for the ordinary stationary temperature field problem by an expandedboundary element method is discussed.The bulk temperature field in involute cylindricalgears is then calculated and the result is compared with that obtained by the classical BEM.It is shown that the computing accuracy and efficiency are improved by using the format of the isoparametric expanded boundary element and Without any increase in the mumber of nodes or change of the input data.