1自由度コンタクトスライダモデルの動的接触挙動と追従性解析

概要

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This paper presents a new theoretical approach to the dynamic behavior of a contact slider that is one of the candidates of head design for future high-density magnetic recording disk drives. The slider and suspension are modeled as a single-degree-of-freedom mass and spring system. The disk surface is assumed to have harmonic wavy roughness, linear contact stiffness and a dashpot. From computer simulation, it is found that jumping vibration of the slider can attenuates in the low frequency range. As the frequency increases, however, the slider turns to exhibit a variety of sub-and superharmonic response and further exhibits chaotic motion. The effects of various design parameters on the jump height of the slider and the surface conditions capable of stable tracking with less than 10 nm jump height are investigated. Slider mass, load and a contact dashpot greatly affect the surface conditions for stable tracking.
社団法人日本機械学会の論文
1994-08-25