• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报

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凹坑形仿生非光滑表面滑靴副的动压润滑计算

梁瑛娜1,2,  高殿荣1,  毋少峰1   

  1. 1. 燕山大学机械工程学院  秦皇岛  066004;
    2. 燕山大学里仁学院  秦皇岛  066004
  • 收稿日期:2014-12-18 修回日期:2015-09-15 出版日期:2015-12-15 发布日期:2015-12-15
  • 通讯作者: 高殿荣,男,1962年出生,博士,教授,博士研究生导师。主要研究方向为新型液压系统的CFD、PIV。 E-mail:gaodr@ysu.edu.cn
  • 作者简介:梁瑛娜,女,1982年出生,博士研究生,讲师。主要研究方向为海淡水液压系统及新型液压元件。
  • 基金资助:
    国家自然科学基金(51375421)、河北省高等学校自然科学研究重点(ZD20131027)和燕山大学青年教师自主研究计划课题(14LGB032)资助项目。

Hydrodynamic Lubrication Calculation for Slipper/swash Plate Pair with Bionic Non-smooth Concave Surface

LIANG Yingna1,2,  GAO Dianrong1,  WU Shaofeng1   

  1. 1. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004;
    2. Liren College, Yanshan University, Qinhuangdao 066004
  • Received:2014-12-18 Revised:2015-09-15 Online:2015-12-15 Published:2015-12-15

摘要: 通过建立凹坑形仿生非光滑表面滑靴副的全水动压润滑模型,采用CFD方法及正交试验法研究工况参数(膜厚、转速)及几何参数(坑形、面积率、深径比)对流体动压润滑性能和水膜承载力的影响规律。研究结果表明:凹坑表面产生的承载效应是其静压和动压分布的综合,其中具有凹坑形仿生非光滑表面的斜盘与滑靴相对运动而引起的动压效应起主要作用;工况参数和几何参数对水膜承载力的影响顺序为转速>膜厚>坑形>深径比>面积率;膜厚30 μm、转速3 000 r/min、面积率20%、深径比0.5的三角柱坑为最优水平组合。该研究结果可为高压海水轴向柱塞泵仿生非光滑表面斜盘的设计提供参考。

关键词: 承载力, 仿生凹坑, 滑靴副, 水润滑, 压力分布

Abstract: A hydrodynamic lubrication model of slipper/swash-plate pair with bionic non-smooth concave surface is established. The CFD method and the orthogonal experiment method are employed to investigate the effect of operating parameters (film thickness、rotate speed) and geometric parameters (concave shape、area ratio、depth to diameter ratio) on the hydrodynamic lubrication performance and the load carrying capacity of seawater film. The research results show that the load carrying effect from concave surface is a combination of static pressure distribution and dynamic pressure distribution, and the dynamic pressure effect caused by the relative motion of slipper-pad and swash-plate with bionic non-smooth concave surface plays a main role; the sequence of operating parameters and geometric parameters for load carrying capacity is rotate speed> film thickness> concave shape> depth to diameter ratio> area ratio; the triangular prismatic concave with film thickness of 30 micrometers、speed of 3 000 r/min、area ratio of 20% and depth to diameter ratio of 0.5 is the optimal level combination. The research results provide reference for the design of swash-plate with bionic non-smooth surface of high pressure seawater axial piston pump.

Key words: bionic concave, load carrying capacity, pressure distribution, slipper/swash-plate pair, water lubrication