织物增强形状记忆复合材料大型空间可展桁架研究进展  

Recent Progress on Weave-reinforced-shape-memory-composite Based Space Deployable Truss

作　　者：高冀峰[1] 房光强 余兵 樊鹏玄 陈务军[1] 赵兵[1] 曹争利 GAO Jifeng;FANG Guangqiang;YU Bing;FAN Pengxuan;CHEN Wujun;ZHAO Bing;CAO Zhengli(Space Structures Research Center,Shanghai Jiao Tong University,Shanghai 200240;Institute of Aerospace System Engineering Shanghai,Shanghai 201108;Space Structure and Mechanism Technology Laboratory of China Aerospace Science and Technology Group Co.Ltd,Shanghai 201108)

机构地区：[1]上海交通大学空间结构研究中心,上海200240 [2]上海宇航系统工程研究所,上海201108 [3]中国航天科技集团有限公司空间结构与机构技术实验室,上海201108

出　　处：《机械工程学报》2020年第5期80-92,共13页Journal of Mechanical Engineering

基　　金：航天先进技术联合研究中心技术创新(USCAST2016-21);博士后创新人才支持计划(BX201600104)资助项目。

摘　　要：围绕新型织物增强形状记忆复合材料空间可展桁架,总结了材料研制、结构制备、形状记忆行为、多尺度力学模型和地面试验的相关研究进展。可展桁架纵杆为织物增强复合材料制成的薄壁管,复合材料是将二维碳纤维织物添加到环氧形状记忆树脂中制备而成,通过调整基体树脂和固化剂的配比可控制材料的形状记忆性能。基于相变理论构建了形状记忆本构模型,并应用三点弯曲试验验证。通过微观、细观、宏观多尺度方法,计算了复合材料的均匀ABD刚度矩阵,依据Kirchhoff假设推导了薄壁管等效空间梁单元。搭建地面技术演示平台,验证形状记忆可展桁架单元收纳比达到50:1,形状恢复率约为100%。The manufacture, shape memory mechanical behavior, multi-scale mechanical model and test of a particular weave-reinforced shape memory polymer composite oriented on large space deployable truss is summarized. The longitudinal rod is a thin-walled pipe made of two-dimensional weave-reinforced composite, which is prepared by adding the two-dimensional carbon fabric to the shape memory epoxy resin. The shape memory properties can be controlled by adjusting the ratio of matrix resin to curing agent. The shape memory constitutive model is formulated according to the phase transition theory and validated by the three-point bending test. The homogenized ABD stiffness matrix of the composite is calculated by microscopic, mesoscopic and macroscopic multi-scale methods. A beam element for the thin-walled tube is derived according to the Kirchhoff hypothesis. The advanced ground platform is developed to demonstrate that the shape memory deployable truss unit has a package ratio of 50:1 and a shape recovery rate is around 100%.

关 键 词：空间可展桁架 织物增强复合材料 形状记忆本构模型 ABD刚度矩阵 复合材料梁单元 

分 类 号：V214[航空宇航科学与技术—航空宇航推进理论与工程]