• •    

带间隙伸展机构的非线性动力学建模

黄铁球,吴德隆,阎绍泽   

  1. 北京宇航系统工程设计部
  • 发布日期:1999-02-25

Nonlinear Dynamic Modeling of Deployable Truss Structures With Clearances

Huang Tieqiu Wu Delong Yan Shaoze (Beijing Institute of Astronautical Systems Engineering,Beijing 100076)   

  • Published:1999-02-25
  • Supported by:
    国家863航天高技术项目

摘要: 首先对两类典型连接铰:旋转铰和滑移铰的物理模型进行了分析,得到铰间隙间相互作用力的关系,然后借助传统的有限元方法,建立了它们的有限单元模型,最后得到含铰接间隙大型桁架式伸展机构的普遍非线性动力学方程。

关键词: 展开机构, 有限元法, 间隙配合, 非线性方程

Abstract: Joint behaviors of a large deployable truss structure are analyzed and the force relationship between internal body and external body of the clearance is acquired,then the finite elements of two typical joints with clearances are established,finally the general nonlinear dynamic equations of such structures are formulated.