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.
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ASME/STLE 2009 International Joint Tribology Conference
October 19–21, 2009
Memphis, Tennessee, USA
Conference Sponsors:
- Tribology Division
ISBN:
978-0-7918-4895-1
PROCEEDINGS PAPER
Design of Damped Air Bearings at Head Disk Interface
Masayuki Honchi,
Masayuki Honchi
Hitachi GST, Fujisawa, Japan
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Kyosuke Ono
Kyosuke Ono
Hitachi Ltd., Fujisawa, Japan
Search for other works by this author on:
Jianhua Li
Hitachi Ltd., Fujisawa, Japan
Junguo Xu
Hitachi Ltd., Fujisawa, Japan
Yuki Shimizu
Hitachi Ltd., Fujisawa, Japan
Masayuki Honchi
Hitachi GST, Fujisawa, Japan
Kyosuke Ono
Hitachi Ltd., Fujisawa, Japan
Paper No:
IJTC2009-15079, pp. 399-402; 4 pages
Published Online:
February 16, 2010
Citation
Li, J, Xu, J, Shimizu, Y, Honchi, M, & Ono, K. "Design of Damped Air Bearings at Head Disk Interface." Proceedings of the ASME/STLE 2009 International Joint Tribology Conference. ASME/STLE 2009 International Joint Tribology Conference. Memphis, Tennessee, USA. October 19–21, 2009. pp. 399-402. ASME. https://doi.org/10.1115/IJTC2009-15079
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