Simulation for Stability Analysis of Flying Head Slider Movement.

TOYOTANI Jun, NAKAMURA Teruo

doi:10.1299/kikaic.64.1494

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Other Title

磁気ディスク浮動ヘッドの浮揚安定性の解析シミュレーション
ジキディスクフドウヘッドノフヨウアンテイセイノカイセキシミュ

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Abstract

This paper presents the numerical simulation of the dynamic response of rarefied gas lubricated slider bearing on a magnetic recording disk. In previous papers, various attempts had been done based on modified reynolds equation such as analysis of dynamic responses by periodic acceleration and experiments. However, the results of experiments have shown that the disk movement is random rather than periodic, so that the acceleration by air lift becomes to have random quality. We have already presented the scheme of the computation and the results without rolling movement. If there is any irregularity on the disk, such as a bump or a grain of dust, the rolling will occur. The object of the present study is to simulate the behavior of the head slider in this case. The present method has an advantage such that only one computation based on a randomized disk movement permit us to obtain resonance region of frequency. Results of the analysis for random acceleration are shown by dynamic response diagrams of a head slider and power spectra of the response.

Journal

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 64 (621), 1494-1501, 1998

The Japan Society of Mechanical Engineers

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