上海海洋大学学报2026，Vol.35Issue(2)：431-442,12.DOI:10.12024/jsou.20251104975
凡纳滨对虾轨道式捕捞地笼优化设计及测试
Optimal design and testing of rail-type shrimp traps for Litopenaeus vannamei
摘要
Abstract
To address the issues of low mechanization levels and high labor intensity in the fishing process of Litopenaeus vannamei,this paper proposes an optimized structural design for the ground cage used in rail-type fishing systems within greenhouse ponds to enhance fishing efficiency.Electromagnetic coupling technology was employed to achieve automatic attachment and detachment between the fishing module and the rail lifting system.Furthermore,a trapezoidal structural model of the shrimp inlet was constructed using parametric geometric modeling.Building on this,and incorporating the cruising behavior characteristics of Litopenaeus vannamei,a shrimp-structure collision detection model based on a normal vector projection algorithm was established to dynamically simulate and quantitatively analyze the trap entry process.Response surface methodology(RSM)was utilized to systematically investigate the influence mechanisms of key parameters-specifically outer inlet length,sidewall inclination angle,and depth-on harvesting efficiency.The results demonstrated that the model possesses high reliability(R2>0.9).Analysis of the structural parameters revealed that the outer inlet length and sidewall inclination angle had the most significant impact on harvesting efficiency(P<0.01).Optimal harvesting efficiency was achieved when the ratio of the outer inlet length to depth was 2.08,and both the sidewall and inner inlet inclination angles were 75°.Field comparative trials indicated that,compared to the original design,the optimized fishing device increased harvesting efficiency by 14.5%,12.8%,and 14.6%across different operational periods,respectively.The study concludes that the designed umbrella-shaped ground cage satisfies the requirements of facility-based greenhouse pond rail harvesting systems,offering a viable solution to the harvesting challenges in Litopenaeus vannamei aquaculture in terms of technical advancement,economic feasibility,and operational efficiency.This research provides a theoretical basis and technical reference for the structural optimization of fishing gear and the development of automated harvesting systems.关键词
凡纳滨对虾/轨道式捕捞/地笼参数优化/碰撞检测算法/响应面分析Key words
Litopenaeus vannamei/rail-type fishing/ground cage parameter optimization/collision detection algorithm/response surface analysis分类
农业科技引用本文复制引用
吴迪,范张晨,赵强,陈雷雷,胡庆松..凡纳滨对虾轨道式捕捞地笼优化设计及测试[J].上海海洋大学学报,2026,35(2):431-442,12.基金项目
上海市农业科技创新项目(T2023108) （T2023108）
上海市水产动物良种创制与绿色养殖协同创新项目(2021科技02-12) （2021科技02-12）
