自稳定筒壳的动力特性分析

Dynamic Behavior Analysis for Self-standing Vaults

本文利用主从自由度约束来模拟剪式单元的真实力学模型，介绍了自稳定筒壳的静力特性和结构几何设计。文中编制了折叠结构的动力分析软件，利用振型分解反应谱法和时程分析法分别对自稳定筒壳的抗震性能进行了详细的分析和比较，得到了一些对工程设计有益的结论。

In recent years,engineers are more and more interested in foldable trusses.The real mechanic model of pantographs is analyzed with master/slave freedom technique in this paper,and the global stiffness matrix is assembled under hybrid-coordinate.A FEA program is developed to computer foldable truss by use of the response spectrum method and time history method.Some important static and dynamic behavior of self-standing vaults are introduced according to scores of numerical results.