Numerical simulation of touchdown/takeoff hysterisis of spherical pad slider by considering the liquid bridge between the slider and lubricant-disk

Hui Li, Jianhua Li, Junguo Xu, Yuki Shimizu, Kyosuke Ono, Shinobu Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This work carries on a numerical simulation of the touchdown/takeoff (TD/TO) hysterisis of the spherical pad slider. It numerically studies the meniscus bridge's formation and meniscus force interaction between the spherical pad and lubricant over the disk surface. It proposes a geometry model for the lubricant bridge, and correspondingly, a force model for the meniscus force acting on the spherical pad slider due to the lubricant bridge. By solving the liquid balance state at the meniscus boundary, it obtains the geometry of the liquid bridge. A parametric study is done to study the effects of the geometry of spherical pad, Hamaker constant of lubricant-disk, and surface energy of lubricant on the formation of the liquid bridge. The overflow phenomenon is analyzed to find out the acceptable dimension of the spherical pad design. Moreover, a three-dimensional (3D) model of spherical pad slider/disk interface is built to study the steady-state flying of the spherical pad slider. The different parameters are analyzed to study their effects on the TD/TO hysteresis.

Original languageEnglish
Title of host publication2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008
Pages165-167
Number of pages3
Publication statusPublished - 2009
Externally publishedYes
Event2008 STLE/ASME International Joint Tribology Conference, IJTC 2008 - Miami, FL, United States
Duration: 2008 Oct 202008 Oct 22

Publication series

Name2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008

Other

Other2008 STLE/ASME International Joint Tribology Conference, IJTC 2008
CountryUnited States
CityMiami, FL
Period08/10/2008/10/22

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Process Chemistry and Technology
  • Mechanical Engineering

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