Through calculations it is found that this method is more applicable than the variable stiffness method.
实际计算表明，这个方法比变刚度法有更大的适用性。
In the methods of nonlinear analysis, along with the normal variable stiffness methods, the improved BFGS method is used.
非线性分析的方法，除采用一般的变刚度法之外，还采用了改进的BFGS法。
This method is available for beams of both constant stiffness and variable stiffness subjected to any transverse loadings.
这种方法可用于承受任意荷载的等刚度和变刚度梁。
In this paper, the elastoplastic incremental finite element method with variable plastic stiffness is used to analyse the surrounding rock stability of underground openings.
本文采用三维弹塑性增量变塑性刚度有限元法计算地下洞室围岩稳定。
The incremental variable plastic stiffness iteration method is employed to solve dynamic equations.
采用增量变塑性刚度迭代法，求解非线性动力方程。
The incremental variable plastic stiffness iteration method is employed to solve dynamic equations.
采用增量变塑性刚度迭代法，求解非线性动力方程。
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