| Dynamic Analysis of Deep-Ocean Mining Pipe System by Discrete Element Method |
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| 作者姓名： | 李艳 刘少军 李力 |
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| 作者单位： | College of Mechanical and Electrical Engineering Central South University，College of Mechanical and Electrical Engineering，Central South University，College of Mechanical and Electrical Engineering，Central South University，Changsha 410083，China，Changsha 410083，China，Changsha 410083，China |
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| 基金项目： | This research is part of a project financially supported by the National Natural Science Gotmdation of China （ Grant No. 50275152） and National Deep-Sea Technology Project of Development and Research. （Grant No. DYI05-3-2- 2） |
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| 摘 要： | The dynamic analysis of a pipe system is one of the most crucial problems for the entire mining system.A discrete element method(DEM)is proposed for the analysis of a deep-ocean mining pipe system,including the lift pipe,pump,buffer and flexible hose.By the discrete element method,the pipe is divided into some rigid elements that are linked by flexible connectors.First,two examples representing static analysis and dynamic analysis respectively are given to show that the DEM model is feasible.Then the three-dimensional DEM model is used for dynamic analysis of the mining pipe system.The dynamic motions of the entire mining pipe system under different work conditions are discussed.Some suggestions are made for the actual operation of deep-ocean mining systems.
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| 关 键 词： | 深海开采管道系统 动力学分析 离散元法 DEM模型 |
| 收稿时间： | 2006-07-11 |
| 修稿时间： | 2006-10-08 |
Dynamic Analysis of Deep-Ocean Mining Pipe System by Discrete Element Method |
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| LI Yan,LIU Shao-jun,LI Li.Dynamic Analysis of Deep-Ocean Mining Pipe System by Discrete Element Method[J].China Ocean Engineering,2007,21(1):175-185. |
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| Authors: | LI Yan LIU Shao-jun LI Li |
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| Abstract: | The dynamic analysis of a pipe system is one of the most crucial problems for the entire mining system.A discrete element method(DEM)is proposed for the analysis of a deep-ocean mining pipe system,including the lift pipe,pump,buffer and flexible hose.By the discrete element method,the pipe is divided into some rigid elements that are linked by flexible connectors.First,two examples representing static analysis and dynamic analysis respectively are given to show that the DEM model is feasible.Then the three-dimensional DEM model is used for dynamic analysis of the mining pipe system.The dynamic motions of the entire mining pipe system under different work conditions are discussed.Some suggestions are made for the actual operation of deep-ocean mining systems. |
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| Keywords: | discrete element method deep-ocean mining pipe system dynamic analysis |
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