球面配流对轴向柱塞泵性能影响的研究
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摘要
为了对比分析球面配流与传统平面配流对轴向柱塞泵性能的影响,运用曲面造型技术建立基于球面配流的柱塞泵整体流域几何模型。在此基础上,采用动网格模拟缸体柱塞腔的轴向往复运动及旋转运动,利用计算流体动力学技术基于全空化模型对柱塞泵整体流域进行分析,分析了球面配流与平面配流对柱塞泵的压力流量脉动、空化现象等方面的影响。分析结果得出:在柱塞泵空化程度的影响方面二者差异很小,在配流过程中球面配流更加稳定,其压力、流量脉动率均优于平面配流。
In order to compare the effects on the performance of an axial piston pump between spherical port plate and traditional planar port plate,the surface modeling technology is used to establish the geometric model of whole basin piston pump based on the spherical port plate pair. On the basis of above,the axial reciprocating motion and rotary motion of the cylinder piston cavity are simulated through the moving grid. Based on the Computational Fluid Dynamics( CFD),the whole basin of the axial piston pump is analyzed on the basis of the full cavitation model,including the spherical port plate and planar port plate in the cavitation,outlet pressure and flow pulsation of piston pump. The conclusion shows that the spherical port pair in flow process is more stable,and the pressure as well as flow pulsation rate is better than the plane port pair to a certain extent,and the difference of the influence on the cavitation degree can be neglected.
In order to compare the effects on the performance of an axial piston pump between spherical port plate and traditional planar port plate,the surface modeling technology is used to establish the geometric model of whole basin piston pump based on the spherical port plate pair. On the basis of above,the axial reciprocating motion and rotary motion of the cylinder piston cavity are simulated through the moving grid. Based on the Computational Fluid Dynamics( CFD),the whole basin of the axial piston pump is analyzed on the basis of the full cavitation model,including the spherical port plate and planar port plate in the cavitation,outlet pressure and flow pulsation of piston pump. The conclusion shows that the spherical port pair in flow process is more stable,and the pressure as well as flow pulsation rate is better than the plane port pair to a certain extent,and the difference of the influence on the cavitation degree can be neglected.
引文
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[14]闻邦椿.流动传动与控制(机械设计手册)[M].北京:机械工业出版社,2014:896-901.WEN Bangchun.Mechanical Design Manual(Flow Transmission and Control)[M].Beijing:China Machine Press,2014:896-901.
[2]王震,聂松林,尹方龙,等.基于Pump Linx纯水轴向柱塞泵配流盘卸荷槽结构的仿真分析[J].液压与气动,2016,(2):11-16.WANG Zhen,NIE Songlin,YIN Fanglong,et al.The Simulation and Analysis of Silencing Groove Structure of Valve Plate Within Water Hydraulic Axial Piston Pump Based on Pump Linx[J].Chinese Hydraulics&Pneumatics,2016,(2):11-16.
[3]翟江,赵勇刚,周华.水压轴向柱塞泵内部空化流动数值模拟[J].农业机械学报,2012,43(11):244-249.ZHAI Jiang,ZHAO Yonggang,ZHOU Hua.Numerical Simulation of Cavitating Flow in Water Hydraulic Axial Piston Pump[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(11):244-249.
[4]凌鹏,权龙,黄伟男.配流盘结构对轴向柱塞泵压力流量特性影响的参数化研究[J].液压与气动,2013,(12):89-92.LING Peng,QUAN Long,HUANG Weinan.The Parametrization Study on the Influence of Valve Plate Structure on the Pressure and Flow Characteristic of Axial Piston Pump[J].Chinese Hydraulics&Pneumatics,2013,(12):89-92.
[5]潘阳,李毅波,黄明辉,等.双联轴向柱塞泵配流盘优化与流量脉动特性分析[J].农业机械学报,2016,47(4):391-398.PAN Yang,LI Yibo,HUANG Minghui,et al.Valve Plate Improvement and Flow Ripple Characteristic Analysis for Double Compound Axial Piston Pump[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(4):391-398.
[6]ZHU Y,CHEN X,ZOU J,et al.A Study on the Influence of Surface Topography on the Low-speed Tribological Performance of Port Plates in Axial Piston Pumps[J].Wear,2015,s338-339:406-417.
[7]CHO I S.A Study on the Optimum Design for the Valve Plate of a Swash Plate-type Oil Hydraulic Piston Pump[J].Journal of Mechanical Science&Technology,2015,29(6):2409-2413.
[8]童水光,王相兵,钟崴,等.基于虚拟样机技术的轴向柱塞泵动态特性分析[J].机械工程学报,2013,49(2):174-182.TONG Shuiguang,WANG Xiangbing,ZHONG Wei,et al.Dynamic Characteristics Analysis on Axial Piston Pump Based on Virtual Prototype Technology[J].Journal of Mechanical Engineering,2013,49(2):174-182.
[9]LONG Q,YANG Y,XU W H.Simulation and Experimental Research on the Axial Piston Pump with Series Three-windows in Valve Plate[C]//Fluid Power and Mechatronics(FPM),2011 International Conference on.IEEE,2011:71-76.
[10]KUMAR S,BERGADA J M.The Effect of Piston Grooves Performance in an Axial Piston Pumps via CFD Analysis[J].International Journal of Mechanical Sciences,2013,66(66):168-179.
[11]单乐,王金林,冀宏,等.柱塞泵球面配流盘阻尼槽对流量脉动性的影响[J].液压与气动,2015,(2):31-36.SHAN Le,WANG Jinlin,JI Hong,et al.Influence of Relief Groove of Spherical Valve Plate on Axial Piston Pump Flow Ripple[J].Chinese Hydraulics&Pneumatics,2015,(2):31-36.
[12]李小金,苑士华,胡纪滨.球面配流副二维稳态压力场的数值求解方法研究[J].中国机械工程,2010,(2):150-154.LI Xiaojin,YUAN Shihua,HU Jibin.Numerical Solution for Two-dimensional Steady-state Pressure Distribution on Spherical Port Plate of Axial Piston Machines[J].China Mechanical Engineering,2010,(2):150-154.
[13]杨阳,权龙,杨敬.轴向柱塞泵非止点配流窗口过渡区压力脉动特性分析[J].机械工程学报,2011,47(24):128-134.YANG Yang,QUAN Long,YANG Jing.Pressure Pulsation Characteristic Analysis of the Non-dead Spots Transition Zone Between Flow Distribution Windows of Axial Piston Pump[J].Journal of Mechanical Engineering,2011,47(24):128-134.
[14]闻邦椿.流动传动与控制(机械设计手册)[M].北京:机械工业出版社,2014:896-901.WEN Bangchun.Mechanical Design Manual(Flow Transmission and Control)[M].Beijing:China Machine Press,2014:896-901.