论文部分内容阅读
本文考虑井架空间受力状态,用矩阵位移法计算柔度系数。按简约柔度矩阵与离散梁式几何刚度矩阵所组成的结构稳定特征值方程,用矩阵迭代法计算井架的整体稳定。文中提出了多重迭代法以确定井架受复杂载荷时的临界载荷。
In this paper, the stress state of derrick space is considered, and the matrix displacement method is used to calculate the flexibility coefficient. According to the structural stability eigenvalue equation composed of simple compliance matrix and discrete beam geometric stiffness matrix, the matrix stability is calculated by matrix iteration method. In this paper, a multi-iteration method is proposed to determine the critical load of the derrick under complex loads.