A bifurcation equation of the steady state main resonance was obtained based on the multiple scales method.
在此基础上，用多尺度法求得稳态下主共振的分岔方程。
The reason is analysed by use of Floquet theory and multiple scales method in the paper.
本文用福洛开理论和多尺度方法，分别研究了其稳定域范围和引起倍频振动的各种因素。
In this paper, problems of bending of a thin plate under the action of in-plane forces are studied by using the method of multiple scales.
本文利用多重尺度法研究了薄板在中面力的作用下的弯曲问题。
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