| 一种新型水下升降装置着底碰撞动力响应分析 |
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| 引用本文： | 胡永利,尹汉军,王盛炜,姚宝恒,连琏.一种新型水下升降装置着底碰撞动力响应分析[J].上海交通大学学报,2016,50(3):456-459. |
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| 作者姓名： | 胡永利 尹汉军 王盛炜 姚宝恒 连琏 |
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| 作者单位： | (1. 上海交通大学 海洋研究院， 海洋工程国家重点实验室， 海洋科学与技术青岛协同
创新中心， 上海 200240； 2. 海洋石油工程股份有限公司， 天津 300000) |
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| 基金项目： | 国家科技重大专项“深水水下应急维修装备与技术”(2011ZX05027 005)资助 |
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| 摘 要： | 建立了碰撞结构动力方程,通过能量守恒理论得到了碰撞力,采用中心差分方法对动力方程进行了数值求解,并对一种配套某重载作业型无人遥控潜水器(Remote Operated Vehicle,ROV)的新型水下升降装置进行了着底碰撞结构动力响应数值仿真,考察了碰撞过程中升降装置整体速度、有效应力、弹塑性变形的变化及二次碰撞现象,对5种常见着底工况的仿真结果对比,分析着底速度对碰撞结构动力响应的影响,为水下升降装置的结构设计和配载选择提供理论依据.
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| 关 键 词： | 水下升降装置 数值仿真 二次碰撞 结构动力响应 |
| 收稿时间： | 2015-01-26 |
Dynamic Response Analysis for Landing Collision of a New Underwater Lifting Device |
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| HU Yongli,YIN Hanjun,WANG Shengwei,YAO Baoheng,LIAN Lian.Dynamic Response Analysis for Landing Collision of a New Underwater Lifting Device[J].Journal of Shanghai Jiaotong University,2016,50(3):456-459. |
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| Authors: | HU Yongli YIN Hanjun WANG Shengwei YAO Baoheng LIAN Lian |
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| Institution: | (1. Institute of Oceanology， State Key Laboratory of Ocean Engineering， Cooperation and
Innovation Center for Marine Science and Technology of Qingdao， Shanghai Jiaotong
University， Shanghai 200240, China； 2. Offshore Oil Engineering Co. Ltd., Tianjin 300000, China) |
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| Abstract: | Abstract： The dynamic equation for collision was established and solved by using the central difference method. Structural dynamic responses for landing collision of a new underwater lifting device supporting an operation type ROV (Remote Operated Vehicle) were studied by using numerical simulation. The whole velocity, effective stress, elastic strain, plastic strain and the second collision in the collision course were analyzed. By comparing the simulation result of five common landing conditions, the influence of landing velocity on structural dynamic response was analyzed, providing a theoretical basis for structure design and load selection of underwater lifting device. |
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| Keywords: | Key words： underwater lifting device numerical simulation second collision structural dynamic response |
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