纯弯载荷下带簧单元的初始缺陷敏感性分析  

Sensitivity of Initial Imperfections for the Tape-spring Under Pure Bending Load

作　　者：叶红玲[1] 邸鹏[1] 张洋[1] 肖燕妮 YE Hongling;DI Peng;ZHANG Yang;XIAO Yanni(College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China;Beijing Satellite Manufacturing Factory,Beijing 100190,China)

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 [2]北京卫星制造厂,北京100190

出　　处：《北京工业大学学报》2018年第4期481-488,共8页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(11072009);北京市教育委员会项目(SQKM201610005001);北京工业大学基础研究基金资助项目(001000514313003)

摘　　要：为了得到空间可展铰链中带簧单元在纯弯过程中对于不同初始缺陷的敏感程度,提高空间可展铰链的稳定性,基于Abaqus有限元软件建立模型,通过引入带簧单元的特征值屈曲模态作为初始缺陷,改变引入屈曲模态的阶数和缺陷因子的大小,在纯弯载荷下对带簧单元进行了屈曲力学性能和缺陷敏感性分析.结果表明:带簧单元正向弯曲的力学性能对屈曲模态缺陷比较敏感;屈曲模态缺陷对带簧单元驱动能力的影响较小,对其自锁能力的影响较大.该研究有助于补充和完善带簧单元的稳定性分析.To obtain the initial imperfections sensitivities of the tape-spring,and thus improve the stability of the space deployable hinge,a model with eigenvalue-buckling-mode imperfection was established by the finite element software Abaqus.The influence of the orders and the factors of the eigenvalue-buckling-mode as variables on the mechanical behaviors in the pure-bending process of the tape-spring were investigated.Results show that the tape-spring is more sensitive to the eigenvaluebuckling-mode imperfection in positive bending.The eigenvalue-buckling-mode imperfection has a smaller effect on the driving force,but has a bigger influence on the self-locking ability of the tapespring.This research is useful to complement and perfect the analysis on the tape-spring stability.

关 键 词：带簧单元 纯弯 初始缺陷 屈曲模态 敏感性分析 

分 类 号：V414[航空宇航科学与技术—航空宇航推进理论与工程]