The power spectral density of ship's motion is calculated based on ocean wave energy spectrum and the movement spectrums of the ship's random motion are calculated and created.
根据海浪波能谱，计算了舰船摇荡运动的功率谱密度和舰船的随机摇荡运动。
The power spectral density of ship's motion is calculated based on ocean wave energy spectrum, and the movement spectrums of the ship's random motion are calculated and created.
根据海浪波能谱，计算了舰船摇荡运动的功率谱密度和舰船的随机摇荡运动。
The bridge was actuated by sinusoid sweeping frequency wave, and then the power spectral density differences between the undamaged and damaged bridge were analyzed.
利用正弦扫频波激振钢桥，分析其损伤前后加速度反应功率谱密度的变化。
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