常見例句雙語例句There is no peaking in the response but simply a smooth roll-off above the natural frequency.響應(yīng)期間無高峰期,只是簡單的,在固有頻率上平滑的跌落。www.e-gtm.com.cnThe roll is increased and severer than shipping state when the frequency of wave is similar as the natural rolling frequency of ships.船舶在系泊或低航速狀態(tài)下,當(dāng)涌浪周期接近船舶自然橫搖周期時,船舶搖擺比航行時更為劇烈。A nonlinear parametric excitation equation is obtained for ships in longitudinal waves, and the dynamic stability is analyzed when the natural frequency of heave and roll are approximately equal.本文建立了在縱浪上航行船舶的非線性參數(shù)激勵橫搖運(yùn)動方程,研究了當(dāng)升沉固有頻率接近橫搖固有頻率時船舶的穩(wěn)定性。 返回 roll natural frequency