摘要
结合给定的变截面梁截面参数,利用能量原理推导出梁单元的柔度矩阵,给出了两种形式的变截面梁算例,计算表明,该算法相比位移法有限元方法仅需要很少的单元就能得到满意的结果,计算效率和精度得到了明显的提高。
Combining with giving the parameters of the varying cross-sectional beam, the flexibility matrix of the beam is derived by applying the energy principle. Two numerical examples of varying cross-sectional beams are presented. Compared with the displacement-based finite element method, IFM can reach the exact solution using significantly less number of elements, and the computation efficiency and the accuracy are im-proved significantly.
出处
《山西建筑》
2017年第19期44-45,共2页
Shanxi Architecture
关键词
变截面梁
积分力法
柔度矩阵
抛物线
varying cross-sectional beam, Integrated Force Method, flexibility matrix, parabola
