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Dynamic analysis of deployable space truss structures
Author(s): 
Pages: 410-416
Year: Issue:  4
Journal: CHINESE JOURNAL OF COMPUTATIONAL MECHANICS

Keyword:  空间展开结构运动力学分析几何约束方程;
Abstract: 本文以笛卡尔坐标系下节点自然坐标为未知量,建立了桁架结构系的基本运动力学方程,并首次推导出桁架结构中常用节点附加几何约束方程,相应约束Jacobi矩阵及其导数矩阵,采用奇异值分解法求约束Jacobi矩阵的零空间基和M-P广义逆,并由矩阵缩减法建立了带约束桁架体系的运动力学方程和求解方法.数值算例表明该方法适于可展折叠桁架结构运动力学分析.
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