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近年来,用非线性规划方法实现结构最优设计的问题,受到了国内外广泛重视。常用的一类方法是线性逼近方法,它在不少问题中获得较好的效果。但当处理不同性质材料混用和复杂结构时,这类方法遇到困难。另一类是采用序列无约束方法或复形法等,其缺
In recent years, the non-linear programming method to achieve the optimal design of the structure has attracted widespread attention at home and abroad. A commonly used class of methods is the linear approximation method, which in many problems get better results. However, such methods encounter difficulties when dealing with mixed and complex structures of different nature. The other is the use of sequence-free method or complex method, the lack of