机械科学与技术2017，Vol.36Issue(5)：704-710,7.DOI:10.13433/j.cnki.1003-8728.2017.0508
油液压缩性影响柱塞泵容积效率的机理分析
Effects of Fluid Compressibility on Piston Pump Volumetric Efficiency
摘要
Abstract
In order to reveal the effects of the fluid compressibility on the piston pump volumetric efficiency,one simulation model is established considering the trapped oil,compression volume loss resulting the fluid compressibility.Then the internal flow of the piston pump is simulated by using the FLUENT software.The simulation results show that trapped oil ratio and compression volume loss increase with the increasing of pressure and speed while the proportion of volumetric efficiency loss due to compression in total volume losses increases with speed and load raise.Finally,the comparison between the simnulation and experimental results indicates that the bias is less than 2.1％,and which validates the simulation of mechanism.关键词
轴向柱塞泵/压缩性/困油现象/数学模型/容积效率Key words
axial piston pump/compressibility/trapped oil phenomenon/mathematical model/volumetric efficiency分类
机械制造引用本文复制引用
焦龙飞,谷立臣,许睿,罗恒星..油液压缩性影响柱塞泵容积效率的机理分析[J].机械科学与技术,2017,36(5):704-710,7.基金项目
国家自然科学基金项目(51675399,51275375)、陕西省教育厅专项科研计划项目(15JK1412)及西安建筑科技大学青年基金项目(QN1532)资助 （51675399,51275375）
