基于响应面方法的板壳结构频率约束优化

Optimum Design of Shell Structures With Frequency Constraints Based on Response Surface Methodology

为了避免复杂的敏度分析,在结构动力优化中引入了响应面方法,建立了频率约束的近似显式表达式．针对板壳结构动力优化问题建立了优化模型,采用Lemke算法进行了运算求解．数值算例验证了该方法的正确性和有效性．

To avoid the complicated dynamic sensitivity analysis, the response surface methodology (RSM) is adopted in structural dynamic optimum design. The approximate explicit of frequency constraints is established. The optimization model of plate and shell structures is constructed and it is solved by Lemke method. Numerical examples show that this method is accurate and efficient.