MNM-P6-1 動的接触角を考慮した液体メニスカス架橋の力学特性解析(P6 情報・精密機器におけるマイクロ・ナノテクノロジー)

概要

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The flying height of a magnetic head has rapidly decreased and contact of the head slider with a disk surface has become unavoidable. The meniscus brigde of liquid lubricant is formed between the head slider and the rigid disk. In this study, mechanical characteristics of a liquid menisucus bridge which is confined between vibrating solid surfaces are investigated theoretically considering dynamic contact angle. It was found that the spring constant and the damping coefficient of a liquid meniscus bridge depend on the contact angle and the excitation frequency. By considering the dynamic contact angle, the spring constant was found to be able to take positive values in spite of less contact angles than 90 deg.
一般社団法人日本機械学会の論文
2010-10-12