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把水压机活动横梁假设成一交叉梁系 ,对其做了弹塑性有限元分析 ,导出了部分节点弯矩超过弹性极限时的梁单元刚度矩阵 ,讨论了计算方法的收敛性。
The hydraulic crossbeam was assumed to be a cross-beam system, and the elasto-plastic finite element analysis was done. The stiffness matrix of beam element was obtained when the bending moment of some nodes exceeded the elastic limit. The convergence of the calculation method was discussed.