MEASUREMENTS AND ANALYSIS OF ICE INDUCED STEADY STATE VIBRATION

机译：冰诱导稳态振动的测量与分析

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Ice induced steady state vibrations were measured on two slender vertical offshore jacket platforms in Bohai Bay of China recently. Primary analysis of the test data confirms that it is self-excited vibration because dynamic ice force was controlled by structure. When ice interacts with a slender vertical structure at particular ice speed, the ice failure mode may alter between ductile and brittle while structure moving forward and backward. Meanwhile, micro-crack activities play an important role, and can be used to explain why the structure is quickly unloaded and the lock in phenomenon of ice with structure.

机译：最近在中国渤海湾的两个纤细垂直的海上夹克平台上测量了冰致稳态振动。测试数据的主要分析证实它是自我激发的振动，因为动态冰是由结构控制的。当冰块以特定冰速与细长的垂直结构相互作用时，冰故障模式可以在延展性和脆性之间改变，而结构向前和向后移动。同时，微裂纹活动发挥着重要作用，可用于解释为什么结构快速卸载和锁定冰与结构的现象。

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《International conference on port and ocean engineering under arctic conditions》|2001年||共8页
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Qianjin Yue; Xi Zhang; Xiangjun Bi; Zhongming Shi;
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中图分类海洋工程;
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MEASUREMENTS AND ANALYSIS OF ICE INDUCED STEADY STATE VIBRATION

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