摘要
针对近海废弃物打捞装置吸取效率低下的问题,研究了不同航速、不同吸取口水下深度对吸取单元吸取速度及吸取压力的影响。采用SolidWorks三维软件,建立了近海废弃物打捞装置吸取单元吸取口数值计算模型,并基于Workbench-Fluent模块,对吸取单元内部流场进行了数值模拟仿真分析;基于Kriging近似模型,建立了吸取口工况参数与吸取速度、吸取压力之间的映射关系;最后,联合NSGA-Ⅱ算法对吸取口进行了多目标优化,寻求了打捞装置的最佳工况参数。研究结果表明:随着航速的增大,吸取单元的吸取速度和吸取压力增大;吸取口的水下深度由50 mm增加到150 mm的过程中,吸取单元的吸取速度和吸取压力随之增大;当航速v=9.79 m/s,吸取口水下深度h=102 mm时,吸取单元的吸取速度提高12.3%,吸取压力提高13.2%,打捞装置工作效率提高明显。
Aiming at the problem of low work efficiency of offshore waste salvage equipment,the effects of different speed and different underwater depth on the suction speed and pressure of the suction unit were studied.The numerical calculation model of the suction port was built by using SolidWorks three-dimensional software.Numerical simulation was carried out for the suction unit of the device based on the Workbench-Fluent module.The mapping relationship between the working condition parameters of the suction port and the suction speed and pressure was established based on the Kriging approximate model.The multi-objective optimization of the suction port was carried out in combination with NSGA-Ⅱ algorithm to seek its best working condition parameters.The results indicate that the suction speed and pressure of the suction unit in the offshore waste salvage device increases with the increase of the ship speed;when the underwater depth of the suction port increases from 50 mm to 150 mm,the suction speed and pressure also increase with it.When the ship speed v=9.79 m/s and the underwater depth h=102 mm,the suction speed is increased by 12.3% and the suction pressure is increased by 13.2%,which implies the suction efficiency is significantly improved.
作者
王春
闫纪媛
杨福芹
何燕
WANG Chun;YAN Ji-yuan;YANG Fu-qin;HE Yan(College of Mechanical and Electrical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)
出处
《机电工程》
CAS
北大核心
2022年第2期158-165,共8页
Journal of Mechanical & Electrical Engineering
基金
山东省重点研发计划资助项目(2018GGX103015)。
