复合材料可展管铰链准静态折叠力学行为分析与优化设计  

Quasi-static Folding Mechanical Behavior Analysis and Optimization Design for Composite Tube Hinge

作　　者：叶红玲[1] 李博文 史雪松 张洋[1] YE Hongling;LI Bowen;SHI Xuesong;ZHANG Yang(College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100124)

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100124

出　　处：《机械工程学报》2020年第5期172-180,共9页Journal of Mechanical Engineering

基　　金：国家自然科学基金(11872080);北京市自然基金(3192005);北京市教委(SQKM201610005001)资助项目。

摘　　要：研究了一种带有两个细长槽的复合材料管铰链空间可展结构的力学行为。基于二维HASHIN失效判断准则,分析管铰链在弯曲折叠过程中可能出现的失效模式和力学行为,研究其折叠过程中失效危险点位置。验证了将复合材料应用于管铰链的可行性。同时,进一步研究了管铰链的槽长、槽宽以及端圆直径对其折叠力学性能及损伤特性的影响规律。基于响应面方法,建立了以应变能最大与临界弯矩最小为目标,以复合材料失效因子为约束,以管铰链几何参数为设计变量的优化模型。采用非支配排序遗传算法对优化模型进行求解,获得了可行解分布,最后依据工程实际采用权重法求解优化模型,得到了优化结果。研究结果对于设计新型运行稳定可靠的空间可展结构具有一定的理论意义。The mechanical behavior of a composite deployable structure is investigated, which is a tube hinge with two slots. Based on the Hashin failure criterion, the mechanical behavior and the failure position of tube hinge bending process are analyzed. Moreover, the feasibility of applying composite materials to tube hinges is verified. At the same time, the influences of slot length, slot width and circle diameter of tube hinge are discussed. The optimal model is established based on response surface methodology, which aimed at maximizing the strain energy and minimizing the peak moment. The failure index during folding processes is considered as constraint. The geometric parameters of tube hinge are chosen as the design variables. By using the non-dominated sorting genetic algorithm, the optimum parameters are obtained by solving the multi-objective optimal model. The proposed method has significance on designing novel deployable structures with high stability and reliability.

关 键 词：管铰链 空间可展结构 复合材料 多目标优化 

分 类 号：V414[航空宇航科学与技术—航空宇航推进理论与工程]