The mathematic model was a nonlinearoscillator driven by wave exciting force while the restoring force was exponential.
系泊运动的数学模型是一个具有指数回复力特性的非线性强迫振子，以波浪作用力为外激励。
2
The example shows that the bifurcation condition of single degree of freedom nonlinearoscillator can indicates the motional behavior of nonlinear flutter system.
算例表明，单自由度非线性振子的分叉条件能够预示非线性颤振系统的运动规律。
3
A sea-air oscillator model of the nonlinear coupling system is studied.