摘要
按照全Ｌａｇｒａｎｇｅ描述法，分析了几何非线性因素对空间网架结构的影响。算例中对所给出网架的节点挠度及自振特性，与线性计算结果作了比较。
On the basio of the total Lagrange method.influerces of geometriearity upon vi-bration behavior of spatial truss structure analysed.After calculation by using the methodpresented,Node displacements and vibration behavior are compared with those calculated bylinear analysis method.
出处
《甘肃工业大学学报》
1995年第1期64-68,共5页
Journal of Gansu University of Technology
关键词
网架结构
几何非线性
自振频率
有限元法
lattice gird structure
geoetrical non-linearity: natural frequency
finite ele-ment methods
interation methods
