| 双船中层拖网网位控制的静力学解析 |
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| 引用本文： | 万荣,朱文斌,何鑫,崔勇,刘莉莉. 双船中层拖网网位控制的静力学解析[J]. 中国海洋大学学报(自然科学版), 2007, 37(1): 61-64,6 |
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| 作者姓名： | 万荣 朱文斌 何鑫 崔勇 刘莉莉 |
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| 作者单位： | 中国海洋大学水产学院,山东,青岛,266003;中国海洋大学水产学院,山东,青岛,266003;中国海洋大学水产学院,山东,青岛,266003;中国海洋大学水产学院,山东,青岛,266003;中国海洋大学水产学院,山东,青岛,266003 |
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| 基金项目： | 国家自然科学基金;高等学校博士学科点专项科研项目;山东省优秀中青年科学家科研奖励基金 |
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| 摘 要： | 中层拖网是开发利用中上层鱼类资源的重要工具之一,能否有效实施对拖网作业水层的控制,是实现瞄准捕捞和提高捕捞生产效率的关键。本文提出了1种基于有限元原理的拖网曳纲形状与张力的理论计算方法,以期依据中层拖网拖曳过程中不同拖速、曳纲长度和重锤配备条件下曳纲响应的计算机模拟结果,预测拖网可能的作业水层,以实现中层拖网网位控制,为中层拖网曳纲设计和网位调整提供理论依据。
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| 关 键 词： | 中层拖网 网位控制 静力学解析 数值模拟 |
| 文章编号： | 1672-5174（2007）01-061-05 |
| 修稿时间： | 2006-05-232006-10-16 |
Static Analysis of the Position Control of Midwater Trawl for Double Dragging |
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| WAN Rong,ZHU Wen-Bin,HE Xin,CUI Yong,LIU Li-Li. Static Analysis of the Position Control of Midwater Trawl for Double Dragging[J]. Periodical of Ocean University of China, 2007, 37(1): 61-64,6 |
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| Authors: | WAN Rong ZHU Wen-Bin HE Xin CUI Yong LIU Li-Li |
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| Affiliation: | College of Fisheries, Ocean University of China, Qingdao 266003, China |
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| Abstract: | Midwater trawls are one of the most efficient fishing tools for exploiting pelagic fish resources.It is very important to control the position of the trawl vertically to suit the depth of the fish shoal for aimed trawling and fishing efficiency improvement.In this article,a new model based on a finite element method has been suggested to evaluate the shape and tension of the warp of the midwater trawl.According to the simulation results of warp,it is possible to predict and control the position of the trawl.As an example,the effects of changing towing speed,warp length and sinker weight on the trawl position control are demonstrated. |
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| Keywords: | mid-trawl position control static analysis numerical simulation |
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