The mathematic model was a nonlinear oscillator 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。
Then, a semi-analytical solution for the velocity response of the pile subjected to a semi-sine wave exciting force was derived by using invert Fourier transform.
利用付立叶逆变换，给出了半正弦脉冲激励下桩顶速度时域响应半解析解。分析了主要参数对响应的影响。
The key of this paper is the solution of the second-order double-frequency wave exciting force for a floating body sailing in waves by solving second-order diffraction potential.
本文的关键是通过求解二阶绕射速度势获得三维移动物体的二阶倍频波浪力。
According to the linear wave theory, the paper suggests a method that is used to evaluate the exciting force of the incident wave in finite water depth.
根据线性波理论，提出了一种计算有限水深情况下入射波激励力的方法。
Moreover, the experimental results showed that the periodic controllable hydraulic water hammer wave generated by the system can be used as an exciting force.
通过对实验结果的频域分析，证明了其压力波动频率受激波器的控制。
Moreover, the experimental results showed that the periodic controllable hydraulic water hammer wave generated by the system can be used as an exciting force.
通过对实验结果的频域分析，证明了其压力波动频率受激波器的控制。
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