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中文摘要：
系泊缆绳作为海洋结构物的定位系统，业已得到广泛的应用。当系泊的浮体发生大幅运动时，缆绳会发生松弛-张紧的变化，引起缆索结构的破坏。针对系泊缆索在松弛-张紧条件下的冲击张力问题，采用实验方法进行了研究，观察缆绳的松弛-张紧运动，测试得到缆绳在松弛-张紧过程的张力曲线，给出频谱曲线。研究结果表明，当缆绳发生松弛-张紧变化时，缆绳中存在冲击张力，并且比通常情况下的张力大很多。试验结果可为理论分析和实际的工程设计提供参考依据。
英文摘要：
Mooring lines are widely used to maintain the buoy＇s position. When the moored buoy moves with large amplitude, the mooring line will transfer from taut to slack, going with the tension increasing sharply, which may endanger the security and production. In this paper, the snap tension in mooring line is studied in the process of taut-slack transferring with experimental method. The taut-slack motions of mooring line are observed, and the tension curves are recorded, and the frequency-spectral curves are obtained. The results show that, when the mooring line transfers from taut to slack, the snap tension exists and is larger than the common tension. All of this will preserve preference for the theory analysis and engineering design.
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