摘要
本文推导了圆弧曲杆的六个位移精确表达式,运用有限元理论导出了曲杆单元刚度矩阵。这种单元计算精确,便于处理非节点荷载,可以方便地被引入现有的结构分析程序。
The exact stiffness matrix for circularly curved bar subjected to ar-bitrary space load is presented based on exact formulations of displacementfunctions. The coordinate transformation matrix and method for calculationof equivalant nodal forces are described in order that the stiffness matrixcan be used for finite element analysis of structures including curved bars.
关键词
圆弧杆
结构分析
有限元
空间
曲杆
Finite element theory
Structure analysis
Curved bar
