This paper presents a new perturbation method of analysis to solve large deflections problems of plates and shells-Free-Parameter perturbation method (FPPM).
本文的主要目的是介绍一种求解轴对称板壳大挠度问题的新的正则摄动方法——自由参数摄动法。
The high-order perturbation method is very useful because it could solve eigenproblems even if the parameter of the damped has a great change.
高阶摄动法能解决阻尼系统参数变化较大时的特征值问题，具有较强的实用性。
The second order perturbation solution for the flow of power-law fluid in stillness a helical pipe is obtained with curvature and torsion as small parameter.
以曲率和挠率为小参数得到螺旋管道内幂律流体流动的二阶摄动解。
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