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工程力学  2014 

考虑刚体转动的钢悬链线立管出平面运动分析

DOI: 10.6052/j.issn.1000-4750.2012.10.0746, PP. 53-57

Keywords: 钢悬链线立管,深水立管,动力分析,刚体转动,出平面运动

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Abstract:

随着油气资源勘探和开发活动不断向深海发展,钢悬链线立管(SCRs)成为深海浮式生产系统油气输送的首选立管。该文在钢悬链线立管动力学模型研究中提出一种新模型:SCR刚体转动模型,该模型基于SCR悬垂段大曲率的考虑,假定立管为绕悬挂点与触地点连线形成的转动轴的刚体转动系统,并将该转动效应以惯性力和水动力阻尼的形式与立管弯曲振动耦合,进行立管的出平面运动分析。数值模拟算例表明,刚体转动效应对钢悬链线立管的动力响应具有较大影响,为立管动力分析中不可忽略的运动分量。

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