解三维弹塑性接触问题的二次规划方法

A QUADRATIC PRO GRAMMING METHOD FOR SOLVING THREE DIMENSIONAL ELASTIC-PLASTIC CONTACT PROBLEMS

本文讨论了基于二次规划理论的三维弹塑性接触问题,其数值解法采用极大极小对偶迭代法,此方法比较简单、容易编制程序并且有严格的算法收敛性证明,方法适用于各种类型结构的接触问题。最后给出某型号飞机的机身与起落架之间的轴-套简结构的计算实例。

This paper discusses a solution method for three dimensional elastic-plastic contact problems based on the guadratic programming theory. The numerical methecl. a max-min dual iterative method, is simple and very easy in programming. The convergence of the algorithm has been proved. Finally, we give a numerical example which is an axle-tube structure connecting the fuselage and landing gear of an aircraft. The numerical results show that the method is efficient.