摘要
本文采用载荷增量—最小二乘配点法分析圆柱壳体和纵、横向加筋圆柱壳的几何非线性问题．首先使用载荷增量法将两种圆柱形壳体的非线性微分方程线性化．然后使用最小二乘配点法求解这些离散后的线性微分方程．本文对几种典型的边界条件和载荷状况下的壳体编制了通用程序进行计算．结果表明本方法是有效和可靠的。
In this paper,the approaches of load incremental and discrete least square collocation have been employed successfully in the geometrically nonlinear analysis for both stiffened and nonstiffened cylindrical shells. First, the governing equations of the cylindrical shells are linearized by using the load incremental approach. Using the least square collocation method, the Incremental Equations are reduced to a group of linear algebra equations which can be easily solved by the Gaussian Eliminating approach. A successful practical computer program is also developed to implement the analysis. Several numerical examples are demonstrated to verify the approach and program presented in this paper.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1994年第1期24-31,共8页
Journal of Shanghai Jiaotong University
关键词
载荷增量
圆柱壳体
非线性分析
cylindrical shell,nonlinear analysis,loaf d incremental method,weighted residue method
