再根据哈密顿原理导出了悬索大挠度振动的有限体积离散方程，推出了索的整体节点力向量、质量矩阵和切线刚度矩阵。
The final finite-volume discretization equations are derived using the Hamilton principle. Meanwhile the global nodal force vector, mass matrix and tangent stiffness matrix of the cable are obtained.
对切线谱法进行拓展，使之适用于具有一般分段线性恢复力模型结构的非线性地震反应增量运动方程的求解。
In this paper, the tangent spectrum method is extended to account for solution of incremental dynamic equations of RC structures with general segmental linear hysteretic models.
对切线谱法进行拓展，使之适用于具有一般分段线性恢复力模型结构的非线性地震反应增量运动方程的求解。
In this paper, the tangent spectrum method is extended to account for solution of incremental dynamic equations of RC structures with general segmental linear hysteretic models.
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