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Wave Synchronizing Crane Control during Water Entry in Offshore Moonpool Operations-Experimental Results

机译：海上月池作业进水过程中的波浪同步起重机控制-实验结果

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摘要

A new strategy for active control in heavy-lift offshore crane operations is suggested, by introducing a new concept referred to as wave synchronization. Wave synchronization reduces the hydrodynamic forces by minimization of variations in the relative vertical velocity between payload and water using a wave amplitude measurement. Wave synchronization is combined with conventional active heave compensation to obtain accurate control. Experimental results using a scale model of a semi-submerged vessel with a moonpool shows that wave synchronization leads to significant improvements in performance. Depending on the sea state and payload, the results indicate that the reduction in the standard deviation of the wire tension may be up to 50%.
机译：通过引入称为波浪同步的新概念，提出了一种用于重型起重海上起重机作业中主动控制的新策略。波浪同步通过使用波浪幅度测量使载荷和水之间的相对垂直速度的变化最小化，从而减小了水动力。波同步与常规的主动升沉补偿相结合以获得精确的控制。使用带有月池的半潜式船舶的比例模型进行的实验结果表明，波浪同步可显着提高性能。根据海况和有效载荷，结果表明，钢丝张力的标准偏差降低可能高达50％。

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