结构时域优化设计的一个有效算法

提出了用于求解满足瞬时性态约束条件的结构时域最优化设计问题的改进 ＳＬＰ 算法。对于约束值比例于设计变量向量的最优设计问题，用射线步将设计点调整到最 严约束边界。对于一般的情况，则用带有约束负补偿的粗糙搜索技术在每次迭代中求 出明显的改进解。算例表明本文方法是有效的。

Efficient Computational Method for Optimal Structural Design in Time Domain

An improved Sequential Linear Programming (SLP) algorithm is presented for time domain optimization of structures subjected to transient dynamic per- formance constraints. For the optimal design problems whose constrained values are in proportion to the vector of design variables, the scaling step is used to adjust the design points to the boundary of the most critical constraint.Gen- erally, the coarse line search strategy with constraint negative compensation is used to find out satisfying solution within an iteration.Optimum designs for two test problems are obtained to illustrate the applicability of the method.