【摘要】 将响应面方法引入到二维连续体结构形状优化中,结合有限元方法,通过一系列的结构分析,近似拟合出状态约束(应力和位移)对设计变量的显函数,代替复杂的解析灵敏度分析,以MSCPatran为平台采用PCL语言开发二维连续体形状优化的程序.文中算例通过与差分法的比较表明这一方法的有效性和可靠性.更多还原

【Abstract】 Response surface method is introduced simply and applied to the structural shape optimization of two-dimension continuum. Combined with finite element, the approximate expressions of constraints functions are fitted by a series of structural analysis. The complex analytical sensitivity analysis is avoided. The programme of shape optimization is empoldered under the platform MSC Patran with Patran Command Language (PCL). The examples illustrate the feasibility and efficiency of RSM.更多还原