1自由度コンタクトスライダのランダムディスク表面モデルに対する跳躍振動特性および追従性の解析

概要

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In this paper we numerically investigated the bouncing vibration and tracking characteristics of a single-degree-of-freedom (1-DOF) slider model over random disk surfaces for future high density contact recording in hard disk drives. We generated the random disk surfaces with various standard deviations and frequency characteristics using a modified mid point algorithm. We calculated the bouncing vibration of the slider and examined the effects of the contact stiffness, the contact damping and the surface roughness characteristics on the bouncing vibration and contact forces of the slider. It was found that the decrease in contact stiffness and the increase in contact damking can generally reduce the bouncing vibration. Decreases in the amplitude of the higher frequency components and the standard deviation of the surface roughness can also contribute to reducing the bouncing vibration and the contact force. The quantitative conditions of the contact stiffness, contact damping, standard deviation and frequency characteristics of surface roughness for a complete tracking condition are statistically examined using 32 data of randomly generated disk surfaces
一般社団法人日本機械学会の論文
1997-08-25