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http://dx.doi.org/10.9725/kstle.2004.20.6.322

Dynamics of a Pico Slider during the Ramp Loading Process  

Rhim Yoon-Chul (School of Mechanical Eng. Yonsei University)
Kim Bum-Joon (Dept. of Mechanical Eng. Graduate School, Yonsei University)
Cho Kwang-Pyo (Dept. of Mechanical Eng. Graduate School, Yonsei University)
Publication Information
Tribology and Lubricants / v.20, no.6, 2004 , pp. 322-329 More about this Journal
Abstract
Recently, a load/unload(L/UL) system is adopted to the hard disk drive(HDD) due to its advantages such as lower power consumption, larger data zone, simpler fabrication of disk due to no bumped parking zone, and rarer contact between slider and media. An analysis of the transient motion for the slider is very important to design an air bearing surface(ABS) of the slider to secure the stable performance of the system. During the L/UL process, however, there are several issues occurred such as contact or collision between slider and media. Sometimes this will cause the system failure. In this study, the dynamics of a pico slider during the loading process are investigated through numerical simulation using FEM analysis and experiment. Ramp profile and angular velocity of the swing arm actuator are very important parameters for the design of L/UL system to avoid collision between slider and disk.
Keywords
loading process; air bearing surface; slider dynamics; collision; HDD; FEM;
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