基于SIMP和GA变形柔性机翼后缘的拓扑优化  

Topology Optimization for Shape Morphing Compliant Trailing Edge Using SIMP and GA

作　　者：朱鹏刚[1] 葛文杰[1] 张永红[1] 赵飞[1] 

机构地区：[1]西北工业大学机电学院,西安710072

出　　处：《机械科学与技术》2009年第11期1468-1472,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(50675175)资助

摘　　要：柔性机构的拓扑优化主要分为连续体优化和离散体优化,连续体优化的全局性优化形状比较好,但是优化出来的形状有不规则,表面不光滑等缺点。而离散体结构拓扑优化可以解决加工的缺点,但初始形状对结构的拓扑形状影响很大,笔者将两者的优化方法结合起来,以机翼后缘为例,通过SIMP法优化出的拓扑形状,采用遗传算法(GA)进行机翼的二次优化,得到了质量更轻,更易加工且变形效果好的优化解。The topology optimization of compliant mechanism is mainly divided into continuum and discrete structure optimization. The global optimization shape of continuum optimization is of shapeliness with the disadvantage of irregular and unsmoothed shape and discrete structure optimization can improve imperfect manufacture with the disadvantage of great influence on structural topology shape by the original shape. This paper combines the two optimization methods together and adopts genetic algorithm （GA） to make quadratic optimization on swing with the example of trailing edge through optimizing topology shape by solid isotropic material with penalization （SIMP） and obtains the optimal solution which is of lighter weight, easier processing and better morphing effect.

关 键 词：SIMP 拓扑优化 遗传算法 全柔性机构 

分 类 号：TH112[机械工程—机械设计及理论]