渐进结构优化在离心机吊篮结构设计中的应用

The application of evolutionary structural optimization in the design of a centrifuger nacelle

根据离心机吊篮的最大外形尺寸、连接边界、载荷以及离心机最大加速度值等参数确定了结构拓扑优化的设计区域、载荷条件和边界条件,采用ANSYS软件,以整体质量最小为目标,根据吊篮实际工作载荷和要求施加拓扑优化约束条件,建立吊篮拓扑优化模型,采用基于应力水平删除材料的渐进结构优化方法进行优化设计。优化后吊篮结构满足约束条件,质量显著减少。

The design area, toad conditions and boundary conditions in topology optimization were determined using the parameters of maximum dimensions, connection boundary, actual load as well as the maximum acceleration. This ANSYS-based optimization targeted the minimum weights of the whole system. The constrained conditions, as well as the model of the nacelle were set up on the basis of the actual working load of the nacelle. The topology optimization was processed by deleting the materials due to stress. The result of the optimization met the constraints, and the weight reduction was notable.