论文部分内容阅读
本文将数学规划法与力学近似手段相结合,对机床中的板壳结构件进行优化设计。考虑了固有频率约束和多工况下的静位移约束,以保证结构件的静、动态特性。为了减少优化过程中有限元结构分析的次数,采用近似分析方法求解一系列较容易解决的优化子问题,逐渐逼近原优化问题的解。所获得的数值计算结果是令人满意的。
In this paper, the mathematical programming method is combined with the mechanics approximation method to optimize the design of the shell and shell structure in the machine tool. Natural frequency constraints and static displacement constraints under multiple operating conditions are considered to ensure the static and dynamic characteristics of the structure. In order to reduce the number of finite element structural analysis in the optimization process, an approximate analysis method is used to solve a series of easily solved optimization subproblems, gradually approaching the solution of the original optimization problem. The numerical results obtained are satisfactory.