Prediction of the steady state flying height and attitude of air-bearing sliders in hard disk drives via simulations is the basis of their design process. Over the past few years air-bearing surfaces have become increasingly complex incorporating deep etches and steep wall profiles. In this paper we present a novel method of solving the inverse problem for air-bearing sliders in hard disk drives that works well for such new designs. We also present a new method for calculating the static air-bearing stiffness by solving three linear systems of equations. The formulation is implemented, and convergence studies are carried out for the method. Mesh refinements based on flux jumps and pressure gradients are found to work better than those based on other criteria.
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e-mail: puneet@cml.me.berkeley.edu
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July 2009
Research Papers
An Efficient FE Analysis for Complex Low Flying Air-Bearing Slider Designs in Hard Disk Drives—Part I: Static Solution
Puneet Bhargava,
Puneet Bhargava
Department of Mechanical Engineering, Computer Mechanics Laboratory,
e-mail: puneet@cml.me.berkeley.edu
University of California, Berkeley
, Berkeley, CA 94720
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David B. Bogy
David B. Bogy
Department of Mechanical Engineering, Computer Mechanics Laboratory,
University of California, Berkeley
, Berkeley, CA 94720
Search for other works by this author on:
Puneet Bhargava
Department of Mechanical Engineering, Computer Mechanics Laboratory,
University of California, Berkeley
, Berkeley, CA 94720e-mail: puneet@cml.me.berkeley.edu
David B. Bogy
Department of Mechanical Engineering, Computer Mechanics Laboratory,
University of California, Berkeley
, Berkeley, CA 94720J. Tribol. Jul 2009, 131(3): 031902 (10 pages)
Published Online: June 15, 2009
Article history
Received:
October 5, 2006
Revised:
June 1, 2008
Published:
June 15, 2009
Citation
Bhargava, P., and Bogy, D. B. (June 15, 2009). "An Efficient FE Analysis for Complex Low Flying Air-Bearing Slider Designs in Hard Disk Drives—Part I: Static Solution." ASME. J. Tribol. July 2009; 131(3): 031902. https://doi.org/10.1115/1.3140606
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