图8. $\omega _{\rm a}=10$ rad/s工况下, (a) 浮体位移和舱壁右侧自由面升高的时间历程曲线; (b) FFT分析
Fig.8. (a) History of vessel displacement and wave elevation along the right tank wall; and (b) Corresponding FFT analyses, for $\omega _{\rm a}=10$ rad/s