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Topology optimization of the suspension's arm in the damaged aircraft trailer[J].计算力学学报,2018,35(1):21~27

Topology optimization of the suspension's arm in the damaged aircraft trailer
Topology optimization of the suspension's arm in the damaged aircraft trailer

DOI：10.7511/jslx20160809002

 作者 单位 E-mail 洪振宇 中国民航大学 航空工程学院, 天津 300300 airstr@163.com 刘嘉 中国民航大学 航空工程学院, 天津 300300 田炜 中国民航大学 航空工程学院, 天津 300300

首先，采用导重准则法对在固定载荷下以位移为约束的拓扑优化问题进行计算，运用一种新的插值模型推导了在单工况作用下的最小质量拓扑优化迭代算法，并通过一个算例验证了该算法的可行性。然后，将该算法应用于残损航空器搬移拖车悬臂的拓扑优化设计中，将由此获得的悬臂的拓扑形貌与结构优化软件Optistruct得到的拓扑结果进行对比。结果表明，二者的迭代速度差别不大，且导重准则法的优化效果更好。作为概念设计，所得的拓扑形貌为以后悬臂结构的优化设计提供了有效参考。

In this paper,a topology optimization problem with displacement constraint is calculated by using the method of the guide weight criterion.A new interpolation model is used to derive the iterative algorithm for the topology optimization under the action of single working condition and a numerical example is given to verify the feasibility of the proposed algorithm.Then,the algorithm is applied to design of the damaged moving Trailer suspension's arm of an aircraft.The comparison of the topological structure of the obtained by the guide weight method with the results obtained by the structural optimization software Optistruct shows that the iteration speed of the two is not very different and the optimization results of the guidance weight criterion method are better.As a conceptual design,the topology found provides an effective reference for the optimal design of the suspension's arm in the future.