摘要
本文采用动态形函数计算Timoshenko梁的动力问题,在形函数中考虑进额率项,并且以转角作为导出形函数的基本未知量,形函数的导出概念明确,格式统一,精度提高较为明显。
In this paper, a new method choosing the rotation of cross section as basic variable is advanced. The displacement and shear rotation are brouht out by using the rotation. The mechanical conception of the method is clear,and the process is uniform. The computational result indicates that the method has high-precision.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
1993年第4期140-144,共5页
Journal of Hefei University of Technology：Natural Science
关键词
动态有限元
剪切变形
梁
旋转
Timoshenko beam, dynamic finite element, dynamic stiffness matrix, dynamic mass matrix, inverse iteration
