利用边界元的基本思想,渐开线直齿圆柱齿轮可以简化到端面进行分析,从而将空间啮合问题转化为平面啮合问题.将边界曲线离散成许多单元和结点,对这些离散点进行啮合和磨损分析,提出了用参数三次样条曲线来模拟磨损后的齿面,实现了对任意啮合点磨损量的计算.编制了一系列的软件,实现了用计算机对齿轮啮合过程中的载荷、应力及磨损进行动态模拟,得出的结果符合通常的磨损规律 Using the basic idea of ​​the boundary element, the involute spur gear can be simplified to the end face to analyze, so that the problem of space meshing can be transformed into the plane meshing problem. The boundary curve is discretized into many units and nodes, Wear analysis, we proposed to use parameter cubic spline curve to simulate the worn tooth surface, and to calculate the wear amount of any meshing point.A series of softwares were compiled to realize the calculation of the load, stress And wear dynamic simulation, the results obtained in line with the usual law of wear