Design of damped air bearings at head disk interface

Jianhua Li, Junguo Xu, Yuki Shimizu, Masayuki Honchi, Kyosuke Ono

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

Abstract

Small perturbation and modal-analysis methods were employed to systematically study a damped slider's dynamic characteristics. We found that a design with grooves distributed on a trailing pad effectively improved the slider's damping at higher frequencies, and the damping ratio was dependent on the number of grooves, their depth, location, width, length, distribution, orientation, and types. A higher damping ratio could be obtained by optimizing these parameters. The femto slider with distributed damping grooves on a trailing pad had a higher damping ratio in the third mode, and hence, its responses to disk parallel and wavy motion were greatly reduced. This new design for the damped slider was an effective solution reducing the slider's modulation.

Original languageEnglish
Title of host publicationProceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009
Pages399-402
Number of pages4
DOIs
Publication statusPublished - 2010 Jun 24
Externally publishedYes
Event2009 ASME/STLE International Joint Tribology Conference, IJTC2009 - Memphis, TN, United States
Duration: 2009 Oct 192009 Oct 21

Publication series

NameProceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009

Other

Other2009 ASME/STLE International Joint Tribology Conference, IJTC2009
CountryUnited States
CityMemphis, TN
Period09/10/1909/10/21

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Fluid Flow and Transfer Processes
  • Surfaces and Interfaces

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  • Cite this

    Li, J., Xu, J., Shimizu, Y., Honchi, M., & Ono, K. (2010). Design of damped air bearings at head disk interface. In Proceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009 (pp. 399-402). (Proceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009). https://doi.org/10.1115/IJTC2009-15079