织物复合材料空间可展桁架模态试验与分析

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (17) : 155-160.

论文

织物复合材料空间可展桁架模态试验与分析

张祎贝1，高冀峰1，陈务军1，张大旭1，房光强2，曹争利2，彭福军2

作者信息 +

Modal tests and analysis of a weave composite space deployable truss

ZHANG Yibei1,GAO Jifeng1,CHEN Wujun1,ZHANG Daxu1,FANG Guangqiang2,CAO Zhengli2,PENG Fujun2

Author information +

文章历史 +

摘要

航天器正朝着大型化、轻量化和模块化的方向发展。由织物复合材料制成的空间可展桁架结构，作为航天器的组成结构有广泛的应用前景。以一个由织物复合材料制成的空间可展桁架结构为研究对象，开展了微重力环境下的模态试验和仿真分析。结构主要由空心圆管、三角形隔板和斜加劲索组成。模态试验采用气动-电磁悬挂系统实现结构重力卸载，模拟微重力环境。仿真分析中，空心圆管由织物复合材料构成，假设为正交各向异性材料结构；三角形隔板由铺层复合材料构成，假设为各向同性材料结构；考虑斜加劲索的预应力对结构刚度及斜加劲索自身有效弹性模量的影响。最终得到的仿真结果与试验对应关系良好，对大型预应力空间可展桁架研究具有参考价值。

Abstract

A large space deployable truss made of weave composite material was taken as a study object. Modal tests in microgravity environment and simulation analysis were conducted for this truss. The space truss was mainly composed of circular hollow section pipe,triangular spacer and oblique stiffened cable. In modal tests,a pneumatic electromagnetic suspension system was used to realize a structure’s gravity off-loading and simulate the microgravity environment. In simulation analysis,a circular hollow section pipe made of weave composite material was assumed to be an orthotropic material structure; a triangular spacer made of laminated composite material was assumed to be an isotropic material structure; the effects of oblique stiffened cable’s pre-stress on structural stiffness and oblique stiffed cable’s equivalent elastic modulus were considered. The simulation results agreed well with those of tests. The study results provided a reference for studying large pre-stressed space deployable trusses.

导出引用

张祎贝1，高冀峰1，陈务军1，张大旭1，房光强2，曹争利2，彭福军2. 织物复合材料空间可展桁架模态试验与分析[J]. 振动与冲击, 2018, 37(17): 155-160

ZHANG Yibei1,GAO Jifeng1,CHEN Wujun1,ZHANG Daxu1,FANG Guangqiang2,CAO Zhengli2,PENG Fujun2. Modal tests and analysis of a weave composite space deployable truss[J]. Journal of Vibration and Shock, 2018, 37(17): 155-160

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