欢迎访问润滑与密封官方网站!

咨询热线:020-32385313 32385312 RSS EMAIL-ALERT
磁流体端面动压润滑特性的试验研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(51775262);江苏省自然科学基金项目(BK20161546);江苏省高校自然科学基金项目(16KJA470001);江苏省“六大人才高峰”项目(ZBZZ-014).


Experimental Study on Hydrodynamical End Surface Lubricating Characteristics of Magnetic Fluid
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    以非接触式机械密封为原型,建立磁流体端面动压润滑试验装置,研究转速、被密封介质压力、磁场强度对液膜润滑特性的规律;同时基于Muijderman窄槽理论,建立磁流体动压润滑特性的解析计算方法,并将解析计算结果与试验结果进行对比分析。结果表明:随转速和被密封介质压力增大,摩擦扭矩、泵送量均增大,而膜厚均减小;随着磁场强度增大,摩擦扭矩增大,泵送量和膜厚减小;相比于转速和密封介质压力,磁场强度对磁流体的动压润滑性能的影响尤为显著,因而当工况变化时可以通过调节磁场强度使密封性能始终保持在最佳工作范围。解析计算方法得到的结果与试验结果基本趋势一致,即验证了试验方法的可靠性,也表明提出的解析计算方法可用于流体动压润滑性能的预测。

    Abstract:

    By taking the noncontacting mechanical seal as the prototype,a test rig was established for the magnetic fluid hydrodynamical end face lubrication,and the influences of the rotational speed,the pressure of the sealed medium and the magnetic field intensity on the liquid film lubrication characteristics were investigated.The analytical calculation method of magnetic fluid hydrodynamic lubrication characteristics was established based on the theory of Muijderman narrow groove,and the analytical analysis results were compared with the experimental results.The results show that,with the increase of the rotational speed and the pressure of the sealed medium,the friction torque and the pumping capacity are increased,while the film thickness is decreased.With the increase of magnetic field intensity,the friction torque is increased while the pumping quantity and film thickness are decreased.Compared with rotational speed and sealing medium pressure,the influence of magnetic field intensity on the hydrodynamic lubrication performance of magnetic fluid is particularly significant.Therefore,when the working condition changes,the sealing performance can always be kept in the best working range by adjusting the magnetic field intensity.The results obtained by the analytical calculation method are consistent with the experimental results,which verifies the reliability of the experimental method,and also shows that the presented analytical calculation method can be used to predict the hydrodynamic lubrication performance.

    参考文献
    相似文献
    引证文献
引用本文

孟咸年,郝梁,凌昊,周剑锋,吴松松.磁流体端面动压润滑特性的试验研究[J].润滑与密封,2019,44(12):37-41.
. Experimental Study on Hydrodynamical End Surface Lubricating Characteristics of Magnetic Fluid[J]. Lubrication Engineering,2019,44(12):37-41.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2020-03-19
  • 出版日期: