Lightweight design of composite sandwich corrugated structures based on variable density method

Ce Tian, Zhimin Tian, Xinwei Cao, Shangwei Dong
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引用次数: 0

Abstract

For the lightweight design of composite sandwich corrugated structures, a new topology optimization design scheme is proposed using the variable density method. Multi-working conditions static analysis of the composite sandwich corrugated structure is carried out by finite element software. Then, the topology optimization is carried out by using the minimum flexibility method. Finally, the results of different working conditions are coupled to propose a new composite sandwich corrugated structure. The results indicate that the structure has a weight reduction of 34% and exhibits periodicity and continuity while also meeting the necessary mechanical properties to fulfill the engineering requirements. The optimization of composite sandwich corrugated structures has been achieved, providing a new approach to the lightweight design of composite sandwich structures.
基于变密度法的复合材料夹层波纹结构轻量化设计
针对复合材料夹层波纹结构的轻量化设计,利用变密度法提出了一种新的拓扑优化设计方案。利用有限元软件对复合材料夹层波纹结构进行了多工况静力分析。然后,利用最小柔性法进行拓扑优化。最后,结合不同工况的结果,提出了一种新型复合材料夹层波纹结构。结果表明,该结构的重量减轻了 34%,并具有周期性和连续性,同时还满足了必要的机械性能,达到了工程要求。复合材料夹层波纹结构的优化已经实现,为复合材料夹层结构的轻量化设计提供了一种新方法。
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