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。
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