TY - GEN
T1 - Design of damped air bearings at head disk interface
AU - Li, Jianhua
AU - Xu, Junguo
AU - Shimizu, Yuki
AU - Honchi, Masayuki
AU - Ono, Kyosuke
PY - 2010/6/24
Y1 - 2010/6/24
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77953719300&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953719300&partnerID=8YFLogxK
U2 - 10.1115/IJTC2009-15079
DO - 10.1115/IJTC2009-15079
M3 - Conference contribution
AN - SCOPUS:77953719300
SN - 9780791848951
T3 - Proceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009
SP - 399
EP - 402
BT - Proceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009
T2 - 2009 ASME/STLE International Joint Tribology Conference, IJTC2009
Y2 - 19 October 2009 through 21 October 2009
ER -