MEASUREMENTS AND ANALYSIS OF ICE INDUCED STEADY STATE VIBRATION

机译：冰引起的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细长的垂直海上夹层平台上测量了冰引起的稳态振动。测试数据的初步分析确认这是自激振动，因为动态冰力是由结构控制的。当冰以特定的冰速与细长的垂直结构相互作用时，当结构向前和向后移动时，冰破坏模式可能会在延性和脆性之间改变。同时，微裂纹活动起着重要的作用，可以用来解释为什么结构快速卸荷以及结构冻结冰的现象。

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《16th International Conference on Port and Ocean Engineering Under Arctic Conditions Vol.1 Aug 12-17, 2001 Ottawa, Ontario, Canada》|2001年|p.413-420|共8页
会议地点 Ottawa(CA);Ottawa(CA)
作者
Qianjin Yue; Xi Zhang; Xiangjun Bi; Zhongming Shi;
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作者单位

Dalian University of Technology, Dalian, China;

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原文格式 PDF
正文语种 eng
中图分类海洋学;
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MEASUREMENTS AND ANALYSIS OF ICE INDUCED STEADY STATE VIBRATION

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