油液内气泡半径和含气量模型研究

doi:10.3901/JME.2018.10.195

机械工程学报 ›› 2018, Vol. 54 ›› Issue (10): 195-201.doi: 10.3901/JME.2018.10.195

油液内气泡半径和含气量模型研究

周俊杰, 苑士华, 荆崇波, 李雪原

北京理工大学车辆传动国防科技重点实验室北京 100081

收稿日期:2017-06-18 修回日期:2017-12-23 出版日期:2018-05-20 发布日期:2018-05-20
通讯作者: 周俊杰(通信作者),男,1986年出生,博士,助理教授。主要研究方向为流体传动与控制。E-mail:121zhouxiao@163.com
基金资助:
国家自然科学基金（51505030）和流体动力与机电系统国家重点实验室开放基金（GZKF-201718）资助项目。

Research on the Model of Bubble Radius and Gas Content in Hydraulic Oils

ZHOU Junjie, YUAN Shihua, JING Chongbo, LI Xueyuan

National Key Laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081

Received:2017-06-18 Revised:2017-12-23 Online:2018-05-20 Published:2018-05-20

摘要/Abstract

摘要： 针对液压油液内空气析出现象，研究压力变化时气泡尺寸和含气量变化规律。在分析气泡界面受力基础上，推导气泡半径和油液含气量的解析模型，通过与数值计算结果对比验证解析公式具有较高精度，理论分析气体随压力升高而发生的溶解和扩散现象对气泡半径和含气量的影响。搭建气泡尺寸测试试验台验证解析模型可准确计算气泡半径。对初始半径为0.095 mm和2.9 mm的两个气泡跟踪测量结果表明气泡溶解和扩散导致气泡半径缩小加快，其影响程度决定于气体在油液的溶解度；对不同含气率的油液测量表明气泡分布呈现对数正态分布特点，经数据拟合气泡半径分布函数可由统一公式表示。最后，根据含气量模型推导其变化率的表达式，研究表明油液压力及其导数是影响含气量变化的主要因素。

关键词: 含气量, 解析模型, 气泡, 气泡半径, 油液

Abstract: In view of the air release issue in hydraulic oils, the variation of bubble size and gas content in terms of pressure is studied. Based on the stress balance on the bubble interface, an analytical model of bubble radius and gas content are derived, and from the comparison to numerical results the formula is verified with a high precision. The model takes the influence of gas dissolution and diffusion on bubble radius and gas content into account. The analytical model is validated by the experimental test rig. Measurement of the bubbles with the initial radius of 0.095 mm and 2.9 mm show that gas diffusion makes the bubble shrink more quickly, and the influence is determined by the gas solubility in oil. The bubble distribution is found to conform to the logarithmic normal distribution, and a uniform equation is fitted to match for different cases. At last, the analytical expression of the change rate of gas content is derived according to the proposed model. Results show that the oil pressure and its derivative are the main factors affecting the change of gas content.

Key words: analytical model, bubble, bubble radius, gas content, oil

中图分类号:

TH137

周俊杰, 苑士华, 荆崇波, 李雪原. 油液内气泡半径和含气量模型研究[J]. 机械工程学报, 2018, 54(10): 195-201.

ZHOU Junjie, YUAN Shihua, JING Chongbo, LI Xueyuan. Research on the Model of Bubble Radius and Gas Content in Hydraulic Oils[J]. Journal of Mechanical Engineering, 2018, 54(10): 195-201.

参考文献

[1] CASOLI P,VACCA A,FRANZONI G,et al. Modelling of fluid properties in hydraulic positive displacement machines[J]. Simulation Modelling Practice & Theory,2006,14(8):1059-1072.
[2] 王静,龚国芳,杨华勇. 油液体积模量的研究与在线测量[J]. 机械工程学报,2009,45(7):120-125. WANG Jing,GONG Guofang,YANG Huayong. Research and online measurement of bulk modulus of hydraulic oil[J]. Journal of Mechanical Engineering,2009,45(7):120-125.
[3] BRENNEN C E. Cavitation and bubble dynamics[M]. Oxford:Oxford University Press,1995.
[4] WARD B,EMMONY D C. Direct observation of the pressure developed in a liquid during cavitation-bubble collapse[J]. Applied Physics Letters,1991,59(18):2228-2230.
[5] ZHOU J,VACCA A,MANHARTSGRUBER B. A novel approach for the prediction of dynamic features of air release and absorption in hydraulic oils[J]. Journal of Fluids Engineering,2013,135(9):1790-1791.
[6] SINGHAL A K,ATHAVALE M M,Li H,et al. Mathematical basis and validation of the full cavitation model[J]. Journal of Fluids Engineering,2002,124(3):617-624.
[7] ZWART P J,GERBER A G,BELAMRI T.A two-phase flow model for predicting cavitation dynamics[C/CD]//Proceedings of the Fifth International Conference on Multiphase Flow,Yokohama,Japan,2004.
[8] GHOLIZADEH H,BURTON R,SCHOENAU G. Fluid bulk modulus:comparison of low pressure models[J]. International Journal of Fluid Power,2012,13(1):7-16.
[9] MANHARTSGRUBER B. Experimental results on air release and absorption in hydraulic oil[C]//Proceedings of the ASME/BATH Symposium on Fluid Power & Motion Control,July 7-11, 2013,Incline Village, Nevada:ASME 2013 Fluids Engineering Division Summer Meeting 2013.
[10] SCHRANK K,MURRENHOFF H,STAMMEN C. Measurements of air absorption and air release characteristics in hydraulic oils at low pressure[C]//ASME/BATH 2013 Symposium on Fluid Power and Motion Control,2013:V001T01A030.
[11] ZHOU J,WEI C,Yuan S. An analytical model of gas content in fluids considering the distribution of bubble radius[J]. Lubrication Science,2017, 29:227-239.

[1]	柏朗, 李言, 杨明顺, 姚梓萌, 姚志远. 超声振动-单点增量复合成形过程中成形力的分析与建模[J]. 机械工程学报, 2019, 55(2): 42-50.
[2]	姚鹏, 王伟, 黄传真, 朱洪涛. 石英玻璃的单颗磨粒划擦应力场解析模型及损伤可控磨削机理研究[J]. 机械工程学报, 2018, 54(21): 191-204.
[3]	王建峰, 孙清洁, 张顺, 刘一搏, 冯吉才. 基于电弧气泡调控的水下湿法焊接稳定性研究[J]. 机械工程学报, 2018, 54(14): 50-57.
[4]	曾霖, 张洪朋, 滕怀波, 张兴明. 一种船机油液多污染物检测新方法研究[J]. 机械工程学报, 2018, 54(12): 125-132.
[5]	薛光明, 张培林, 何忠波, 李冬伟, 杨朝舒, 赵正龙. 喷油器用超磁致伸缩致动器多自由度模型[J]. 机械工程学报, 2015, 51(24): 97-104.
[6]	杨树军, 焦晓娟, 鲍永, 王文锋, 丁健. 油液含气量对液压机械换段性能的影响[J]. 机械工程学报, 2015, 51(14): 122-130.
[7]	高殿荣;魏云;王凯. 液体圆柱静压导轨设计参数对其性能的影响[J]. , 2014, 50(24): 186-191.
[8]	宋云超;宁智;孙春华;吕明;阎凯;付娟. 液滴撞击壁面气泡的产生及运动研究[J]. , 2014, 50(2): 153-158.
[9]	吕明;宁智;阎凯;付娟;宋云超;孙春华. 基于作用力分析的分裂液滴内空泡时间稳定性研究[J]. , 2014, 50(14): 162-169.
[10]	闫清东;李晋;魏巍. 工作油液温度对液力变矩器性能影响计算流体力学分析及试验研究[J]. , 2014, 50(12): 118-125.
[11]	丁玉栋;廖强;朱恂;王宏;刘忠海. 液体通流矩形槽道可渗透壁面处气泡生长及液相侵渗传输特性研究[J]. , 2013, 49(14): 119-124.
[12]	李瑞;程浩;孙朝阳;张清东. IN690合金管材热挤压中玻璃垫润滑行为的仿真研究[J]. , 2012, 48(8): 49-53.
[13]	彭天好;乐南更. 变转速泵控马达系统转速降落补偿试验研究[J]. , 2012, 48(4): 175-181.
[14]	刘兴男;李言祥;陈祥;范雪柳. 气室体积和吹气口数量对泡沫铝孔径的影响[J]. , 2011, 47(6): 73-79.
[15]	王静;龚国芳;杨华勇. 油液体积模量的研究与在线测量[J]. , 2009, 45(7): 120-125.

油液内气泡半径和含气量模型研究

Research on the Model of Bubble Radius and Gas Content in Hydraulic Oils

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价