本文简单介绍了弹性静力学问题的边界元法(BEM)。通过两个算例,考验了计算机程序,并与理论解和有限无法(FEM)解进行了比较;应用BEM对涤纶排管设备中压力调节装置的带轴承孔的燕尾接头的应力集中问题所进行的计算,为设计提供了依据。计算表明,用BEM计算弹性力学问题,特别是关于无限域、应力集中等问题具有比FEM明显的优点。 This paper briefly introduces the Boundary Element Method (BEM) of the elastic statics problem. Through two examples, the computer program was tested and compared with the theoretical solution and the finite solution (FEM). The application of BEM to the stress concentration of the dovetail joint with bearing hole in the pressure regulating device of the polyester piping equipment was carried out. The calculation provides the basis for the design. Calculations show that BEM is more effective than FEM in solving elastic mechanics problems, especially in the fields of infinite fields and stress concentration.