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在工程结构设计中,通常要保证结构的性能要求,另外希望尽量减轻结构的重量和减少材料消耗。结构设计问题可以归结为: 式(1)中,f()为结构的重量或体积,g()为结构的性能约束。因为一般性能约束为结构固有频率约束和结构在外载作用下的静态变形约束,故在此取为不等式约束。在求解式(1)表示的问题时,必须能够明确地分析出结构在设计点的性能及结构对于设计变量的响应,这样在结构优化设计过程中的大部分时间是用
In engineering structural design, usually to ensure the performance requirements of the structure, the other want to minimize the weight of the structure and reduce material consumption. Structural design problems can be summarized as follows: In equation (1), f () is the weight or volume of the structure, and g () is the performance constraint of the structure. Because the general performance constraints are the structural natural frequency constraints and the static deformation constraints of the structure under external loads, it is taken as the inequality constraint. In solving the problem expressed by (1), we must be able to clearly analyze the structure’s response to the design variables at the design point’s performance and structure, so that most of the time in the structure optimization design process is to use