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冰与结构动力相互作用的理论分析模型

, PP. 140-146

Keywords: 冰力,损伤,自激振动,频率锁定

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Abstract:

在过去20年中,北极地区不同型式近海结构均发生过严重的冰激振动.这些结构包括独腿灯塔(70年代的芬兰波兹尼亚湾)、多腿采油平台(1969、1977和1988~1990年我国渤海湾)以及大尺度的人工岛(1986年加拿大波弗特(Beauforts)海Molikpaq人工岛).这些振动在不同程度上造成了结构损坏或影响正常生产.因此,认识和抑制近海结构的冰激振动是一个迫切和现实的问题.基于研究者从不同角度观察的结果,解释这类振动的观点各不相同.

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