The MATLAB simulation program is coded to estimate the parametrically excited stability of the composite beams.
然后，编制MATLAB数值模拟程序，研究两种复合梁的参激稳定性。
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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