Optimization of Proximity Recording Air Bearing Sliders in Magnetic Hard Disk Drives
Author:
O’Hara Matthew A.1, Hu Yong2, Bogy David B.3
Affiliation:
1. Maxtor Corporation, Milpitas, CA 95035 2. Quinta Corporation, San Jose, CA 95131 3. Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, CA 94720
Abstract
The object of this paper will be to optimize the contact stiffness (CS) of an existing proximity recording air bearing surface (ABS). The CS is a measure of the slider’s increase in contact force with increase in slider/disk interference. By minimizing this, the amount of force transmitted through the slider at the interface is minimized. This should, in turn, minimize the amount of wear, improving the tribological performance. Comparisons of the pre- and post-optimized slider have been made. In combination with research that demonstrates the ability of the CS parameter to predict tribological behavior (Hu et al., ASME J. Tribol., 120, pp. 272–279) this paper demonstrates the feasibility of numerical optimization of the tribological behavior of proximity recording air bearing sliders. [S0742-4787(00)03201-X]
Publisher
ASME International
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Reference7 articles.
1. O’Hara, M. A., 1997. “Optimization of Disk Drive Components.” May Doctoral Dissertation, UC Berkeley. 2. Lu, S., and Bogy, D. B., 1994, “A Multi-Grid Control Volume Method for the Simulation of Arbitrary Shaped Slider Air Bearings with Multiple Recess Levels,” CML Report No. 94-016. Computer Mechanics Laboratory. University of California, Berkeley. 3. Hu., Y., Jones, P. M., Chang, P. T., and Bogy, D. B., “Partial Contact Air Bearing Characteristics of Tripad Sliders for Proximity Recording,” ASME J. Tribol., 120, pp. 272–279. 4. Bogy, D. B., Lu, S., O’Hara, M. A., and Zhang, S., 1998, “Some Advanced Air-Bearing Design Issues for Proximity Recording,” ASME J. Tribol., 120, No. 3, pp. 566–70. 5. O’Hara, M. A., Yong, Hu., and Bogy, D. B., 1996, “Effects of Slider Sensitivity Optimization,” IEEE Trans. Magn., Sept., 32, No. 5, Part 1, pp. 3744–6.
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