Through dynamics simulation,the influence of ship roll, pitch and heave motion due to ocean wave motion to performance of crane is known.
通过动力学仿真计算,得到了由于海浪引起船舶的横摇、纵摇、升沉运动对起重机性能的影响。
参考来源 - 船用起重机和波浪补偿控制系统设计研究Furthermore, the effect of reduced frequency, non-dimensional heaving amplitude, pitching amplitude, phase difference between heaving and pitching motion on propulsive performance is irfvestigated for wings with aspect ratio of two and six.
进而研究了约化频率、无因次升沉运动幅度、俯仰运动幅度、升沉和俯仰运动相位差对展弦比AR=2和AR=6机翼推进性能的影响。
参考来源 - 振动翼推进及干扰效应非定常流体动力研究·2,447,543篇论文数据，部分数据来源于NoteExpress
由于海浪的作用，钻井平台会产生升沉运动。
The heave motion of drilling platforms is caused by the wave.
首先对船舶在波浪中的纵摇与升沉运动进行了研究。
Firstly, the heaving and pitching motions of ship in regular waves are discussed.
因此，需要采用升沉补偿系统对钻柱升沉运动进行补偿。
Therefore, a drill string heave compensation system is needed to compensate the heave motion.
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