基于HyperMesh/OptiStruct的发动机支架结构拓扑优化设计

利用SolidWorks三维建模软件建立发动机支架的原始计算机辅助设计(computer aided design, CAD)模型,并将其CAD模型导入HyperMesh,生成三维模型,对发动机支架有限元模型的静态特性和动态特性进行分析,进而利用HyperMesh自带的OptiStruct优化模块中的变密度拓扑优化算法...

The Structural Optimization Design of Engine Bracket Based on HyperMesh/OptiStruct

The CAD model of engine bracket with independent intellectual property rights was established by using 3D-CAD system SolidWorks, then CAD model is generated into HyperMesh to get a HyperMesh model, the static and dynamic characteristics of engine bracket finite element model are executed. The optimization design of engine bracket was performed with the help of variable density topology optimization algorithm based on OptiStruct module of HyperMesh. The result of comparison between topology optimization and before optimization shows, that the flexibility of improved engine bracket is slightly reduced, the stiffness is increased, as well as first three natural frequencies are improved, and the topological optimization has a instructive significance, and the result of topology optimization provides advising significance and theoretical evidence for subsequent detailed improvements designs