Optimization of the structural parameters for four-panel shrimp trawl nets based on orthogonal experimental design

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 基于正交试验方法的四片式虾拖网结构参数优化 DOI: 作者: 作者单位: 中国水产科学研究院 东海水产研究所, 农业部海洋与河口渔业重点开放实验室, 上海 200090 作者简介: 周爱忠(1969-),男,助理研究员,研究方向为渔具、渔法和模型研究.E-mail:zhouaz@eastfishery.ac.cn 通讯作者: 中图分类号: S972 基金项目: 国家科技支撑计划项目（2013BAD13B04） Optimization of the structural parameters for four-panel shrimp trawl nets based on orthogonal experimental design Author: Affiliation: Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation and Utilization, Ministry of Agriculture; East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:针对规格为40.3 m×（20.8~16.2） m的我国过洋性虾拖渔业四片式虾拖网，基于w）、侧网宽度（（袖端间距与阻力之比）系数影响的显著性，旨在对此种网具的网身长度与网口周长之比（）、侧网宽度与上网片宽度之比（）这3种结构参数进行优化。结果表明，对网具阻力的影响因素由主到次依次是下网袖长度、网身长度、侧网宽度。对能耗系数的影响因素在水平扩张（袖端间距）=10 m时，下网袖长度为主影响因素。对应比小网目底层拖网略小，但在较大的范围内（0.26~0.38）变化亦不会对网具水动力性能有显著影响。SS/结构参数值。 Abstract:This study concerns the Chinese distant-water shrimp-trawl fishery effort which uses four-panel trawl nets with the specification 40.3 m × (20.8-16.2) m. Based on the L9(34) orthogonal array, the orthogonal experiment of three factors [body length () and meshes of side pannel] in each level was designed to optimization three structural parameters of S/, by analyzing the effect of three experimental factors changing on the level of test resistance of the net, the coefficient of energy consumption, and the coefficient of . The results showed that the resistance of the net was primarily affected by in a descending sequence. The coefficient of energy consumption was primarily affected by in a descending sequence when was the main influencing factor and the main influencing factor of the coefficient of of this type of net should be slightly smaller than used in small-mesh bottom trawls, but in a larger range (0.26-0.38) the change did not show a significant impact on the hydrodynamic performance of the nets. The best level of the experiment was when was the most significant factor among the three factors. And the best level of the experiment was when only needed to meet the height of the net mouth when trawling for shrimp, and given a priority to expand the horizontal distance of the net, was not concerned with the structural parameter of . 参考文献 相似文献 引证文献