欧式围网起网理网机负载敏感液压系统设计及仿真

Design of load sensing hydraulic system for European purse Seine transport-roller

欧式围网是海洋捕捞中上层鱼类效率最高的围网渔法之一。研究了理网与起网传动控制协同性技术,以保障欧式围网高效连续起网作业。以某新型40 m欧式围网示范渔船上的起网与理网适配需求为基础,采用负载敏感控制技术设计起网理网机液压传动控制系统,构建“渔具负载-起网速度”阻力特性模型,基于液压负载敏感和电液恒功率控制的双闭环反馈控制系统,以协同控制围网起网理网机自适应工作负载,并通过AMESim软件对起网理网机负载敏感液压传动控制系统进行仿真。结果显示:起网理网机负载敏感液压传动控制系统可以自适应围网起网渔具负载变化,自动调节理网速度实现恒功率理网,实现连续起网作业。相比传统液压系统传动的起网理网机,在相同海况下,起网效率提高32.78%。本研究涉及的液压负载敏感传动控制技术为欧式围网渔业高效捕捞提供了解决方案。

The European purse Seine is one of the most efficient purse Seine fishing methods for pelagic fish.The cooperative netting and transmission control technology is studied to ensure the efficient continuous netting operation of the European purse Seine.Based on the adaptation requirements of netting and netting on a new 40 m European Seine model fishing boat,this paper studies the design of the hydraulic transmission control system of the transport-roller by using load-sensitive control technology,constructs a resistance characteristic model of"fishing gear load-netting speed,"and integrates a double closed-loop feedback control system based on hydraulic load-sensitive and electro-hydraulic constant power control.The Seine transport roller is cocontrolled to adapt to the fishing gear load,and the AMESim software is used to simulate the load-sensitive hydraulic transmission control system of the transport roller.The simulation results show that the load-sensitive hydraulic transmission control system of the transport roller can adapt to the load change of the Seine netting gear,automatically adjust the netting speed and constant power netting,and realize continuous netting operation.Compared with the traditional hydraulic system transmission of the transport roller,the network efficiency is increased by 32.78% under the same sea conditions.The hydraulic load-sensitive transmission control technology involved in this study provides a solution for efficient fishing in European purse Seine fishery.