关键词: 半解析法, 超单元, 计算效率, 拓扑优化, 协同优化, 装填设计

Abstract: The purpose is to present an integrated layout design method for multi-component system problem. The new strategies introduced aim at improving the computational efficiency of the integrated layout design, i.e. an integrated design for components’ package design and structural topology design. The computational efficiency improvement is attributed to the following three aspects: ① An improved embedded meshing technique is applied which simplifies the integrated FE-model construction process; ② The super-element technique used to build the component FE-model saves computing cost in FE analysis; ③ A new semi-analytical scheme is proposed for the sensitivity analysis of the geometrical design variables which simplifies the calculation of sensitivity compared with the formerly used finite difference scheme. One typical example from the previously published paper is re-tested with the improved method. The final designs present themselves as certain integral structures. Meanwhile, the newly proposed integrated layout design method can greatly improve the design efficiency.

Key words: Computational efficiency, Integrated layout design, Package design, Semi-analytical method, Super-element, Topology optimization