Simulation of Dynamic Behavior of Slider at Head/Disk Interface of Hard Disk Drives

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The effect of contact between the sliders and disks on the flying characteristics of sliders in hard disk drives was modeled and analyzed. The differential equation of motion for slider was constructed based on slider/disk dynamics model with consideration of contact force. The contact was simplified as an elastic contact style and described by Hertzian contact method. The slider responses were simulated by using SimMechanics software. The results indicate that slider acts as periodic vibration under the contact force.

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189-192

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January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Lee Sung-Chang, A.A Polycarpou, Strategies to avoid head-disk instabilities due to adhesion in ultralow flying head-disk interfaces, J. IEEE Trans.Magn. 40 (2004) 3130-3135.

DOI: 10.1109/tmag.2004.828972

Google Scholar

[2] Ono K, Yamane M, Improved analysis of unstable bouncing vibration and stabilizing design of flying head slider in near-contact region, J. ASME J.Tribol. 129 (2007) 64-74.

DOI: 10.1115/1.2401214

Google Scholar

[3] J A Greenwood, J.B.P. Williamson, Contact of nominally flat surfaces, J. Proc. Roy. Soc. Lond. A112(1442) (1966) 300–319.

Google Scholar

[4] W.R. Chang, I. Etsion, D.B. Bogy, An elastic-plastic model for the contact of rough surfaces, J. ASME J Trib. 109 (1987) 257–263.

DOI: 10.1115/1.3261348

Google Scholar

[5] Kogut L, Etsion I, A Finite Element Based Elastic-plastic Model for the Contact of Rough Surfaces, J. Trib Trans.46 (2003) 383-390.

DOI: 10.1080/10402000308982641

Google Scholar

[6] Li H, Liu B, Hua W, et al, Intermolecular force, surface roughness, and stability of head-disk interface ,J . Journal of App lied Physics. 97(10) (2005) 305.

DOI: 10.1063/1.1852831

Google Scholar

[7] D. Chen, D. B. Bogy, Numerical investigation of bouncing vibrations of an air bearing slider in near or partial contact, J. ASME J Tribol. 132 (2010) 1-11.

DOI: 10.1115/1.4000514

Google Scholar

[8] H.D. Wei, H.R. Ao, H.Y. Jiang, Modeling and dynamic simulation for head/disk and suspension interface during load/unload process of a hard disk drive, J. Journal of Vibration and Shock. 29 (2010) 78-81.

DOI: 10.1299/jamdsm.4.23

Google Scholar