柔性变形机翼后缘拓扑优化设计

为了实现机翼表面的自适应变形和结构轻量化,将柔件机构引入到机翼后缘形状变化结构设计中.应用连续体拓扑优化技术,以实际位移与目标位移之间的偏差为目标函数,材料用量为约束,建立SIMP(solid isotropic material with penalization)密度刚度插值模型.采用Matlab编程对柔性机构进行了优化设计,并对不同参数下的优化结果进行了讨论,最后进行机构的仿真分析.研究结果显示该柔性机构能够实现预期的形状变化,证明了方法的正确性,为柔性机翼设计提供理论基础.

Topology Optimization Design of Shape Changing Compliant Mechanism for Wing Trailing Edge

In order to implement the shape adaptive change and structural light weight of compliant wing,this article introduces the compliant mechanism into the trailing edge shape change structural design of wing.A compliant mechanism continuum topology optimization model is presented,which is based on the SIMP(solid isotropic material with penalization) model and takes the displacement deviation between actual and target as the objective function,and the material amount as restriction.The optimized design of the co...