摘要
为研究流体介质对齿轮泵内部流场及脉动的影响机制,运用FLUENT软件对齿轮泵的二维内部流场进行了瞬态仿真分析,对比分析了不同工况下流体介质对齿轮泵内部流场及输出特性影响。数值分析表明:考虑流体介质非线性变化较不考虑时泵出口流量脉动系数之间的差值随着转速的增大而减小,随着负载的增大而增大;流体介质的非线性变化对泵的流量脉动系数及实际流量影响较大,对压力脉动的脉动系数及实际压力影响较小。考虑流体介质非线性变化的仿真结果更符合实际工况,为开展齿轮泵的减振降噪及故障诊断等方面的研究提供了有效的工具。
In order to analyze how the non-linearity property of oil influences internal flow field and pulsation of gear pump,the two-dimensional internal flow field of the gear pump is simulated by FLUENT.Under different operation condition,the effects of oil property on the Internal Flow Field and Output Characteristics of Gear Pump are obtained.The simulation results show that the pulsation coefficient of the pump outlet flow is changed once considering the non-linearity property of oil,and it decreases with the increasing of rotational speed while enhances with the increasing of load.Moreover,non-linearity property of oil has great influence on the pulsation coefficient but small influence on the actual pressure of the pressure pulsation.It is closed to the actual working condition when considering the simulation results of oil nonlinearity,which provides an effective tool to the research on vibration reduction and fault diagnosis of gear pump.
作者
段志善
田庆飞
郭宝良
DUAN Zhi-shan;TIAN Qing-fei;GUO Bao-liang(School of Mechanical & Electrical Engineering,Xi’an University of Architecture and Technology,Shaanxi Xi’an 710055,China)
出处
《机械设计与制造》
北大核心
2019年第6期132-135,共4页
Machinery Design & Manufacture
基金
陕西省科技攻关项目(2013K07-09)
关键词
齿轮泵
内部流场分析
非线性
流量脉动
故障诊断
Gear Pump
Internal Flow Field Analysis
Non-Linear
Flow Pulsation
Vibration Noise Reduction
