Then the finite element method is introduced for the elastic slider-crank mechanism, i. e. how to make the dynamics model of an elastic beam element by using the finite element method.
同时针对弹性机构而言，介绍了有限单元法。主要说明如何对弹性梁单元进行有限元建模。
Parametrically excited double pendulum belongs to 2 degree freedom time-varying system, it is a basis to study nonlinear dynamics of multi-degree freedom system and elastic beam.
参数激励双摆属两自由度时变系统，是研究多自由度系统以及弹性体梁参激振动的基础。
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