As an extension of the study presented in ISPS 2016, vibration characteristics of a commercially used head slider in hard disk drives at touchdown are analyzed by using a single degree-of-freedom (DOF) slider model, improved asperity adhesion force model, and air-bearing force model. Using parameter values at the head/disk interface, the total interfacial force was evaluated for various air bearing stiffness ratios r. Microwaviness (MW)-excited slider vibration was simulated near the boundary of instability onset (r = 2.4), and slight instability conditions at r = 2. It was found that the simulated results at r = 2.4 and 2 agree well with the touchdown vibrations of actual slider at ID and MD, respectively. The possibility of surfing recording is discussed.
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ASME 2017 Conference on Information Storage and Processing Systems collocated with the ASME 2017 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
August 29–30, 2017
San Francisco, California, USA
Conference Sponsors:
- Information Storage and Processing Systems Division
ISBN:
978-0-7918-5810-3
PROCEEDINGS PAPER
Numerical Analysis of Microwaviness-Excited Vibrations of a Flying Head Slider at Touchdown
Kyosuke Ono
Kyosuke Ono
Tokyo Institute of Technology, Suginami-ku, Japan
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Kyosuke Ono
Tokyo Institute of Technology, Suginami-ku, Japan
Paper No:
ISPS2017-5447, V001T01A012; 3 pages
Published Online:
October 30, 2017
Citation
Ono, K. "Numerical Analysis of Microwaviness-Excited Vibrations of a Flying Head Slider at Touchdown." Proceedings of the ASME 2017 Conference on Information Storage and Processing Systems collocated with the ASME 2017 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. ASME 2017 Conference on Information Storage and Processing Systems. San Francisco, California, USA. August 29–30, 2017. V001T01A012. ASME. https://doi.org/10.1115/ISPS2017-5447
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