摘要
为进一步提高拖拉机的工作效率,基于CFD流体运动学技术,针对如何优化其液压系统展开研究。在明确了CFD核心计算理论与求解流程的基础上,结合液压系统的运行特点,建立管路系统优化依据的数学模型,并经仿真匹配确定合适的管径尺寸与管路走向,增设反应敏捷的控制模块,形成软硬件集成的拖拉机液压系统。拖拉机作业性能试验结果表明:优化后的液压控制系统回路压力损失占比相对降低了5.24%,管路结构紧凑度得到提升,系统工作效率提高至90%以上,拖拉机的整体效率相对提升了8.59%,满足拖拉机工作性能要求。
In order to further improve the working efficiency of agricultural tractors in China based on CFD fluid kinematics technology,the problem that how to optimize its hydraulic system was studied.The mathematical model of pipeline system optimization was established on the basis of defining the CFD core calculation theory and solving process,combined with the operation characteristics of the hydraulic system,and then through the simulation and matching,the appropriate pipe diameter size and pipeline direction were determined,and the quick response control module was added to form the agricultural tractor hydraulic system with software and hardware integration.The performance verification test of the tractor was carried out,and the results showed that the proportion of pressure loss of hydraulic control system was reduced by 5.24%,the compactness of pipeline structure was improved,the working efficiency of the system was increased to more than 90%,and the overall efficiency of tractor was increased by 8.59%after optimization.The optimization scheme and effect could meet the requirements of tractor performance,which would be good inspiration for the design and innovation of the similar agricultural machinery equipment.
作者
王新琴
曾励
Wang Xinqin;Zeng Li(Department of Mechatronics Engineering,Wuxi Institute of Commerce,Wuxi 214153,China;College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,China)
出处
《农机化研究》
北大核心
2023年第4期241-245,共5页
Journal of Agricultural Mechanization Research
基金
江苏高校“青蓝工程”项目(RS19QL02)
国家重点研发计划项目(2016YFD0700903)。
关键词
拖拉机
流体运动学
液压系统
求解流程
the tractor
fluid kinematics
hydraulic system
solving process
