バルク変形・粗さ接触・潤滑剤の吸着力を考慮した2面間の接触特性(情報機器コンピュータメカニクス1 -ヘッド・ディスク・インターフェース,IIP2004 情報・知能・精密機器部門講演会)

概要

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We calculated the characteristics of contact force and adhesive force between contact pad and disk surface considering asperity contact, attractive force of the lubricant and bulk deformation. At first, we compared the results of GW model and our present model. As a result, we found that the bulk deformation becomes predominant when the asperity density is large and the rms value of asperity peak height is small as in cases of current slider and disk surfaces. Nest, we examined the intermolecular adhesive force and the contact stiffness as a function of asperity contact pad area, density, rms value of the peak height, asperity radius of curvature and lubricant thickness. As a result, it was found that the rough surface can be modeled by a simple bulk contact force and attractive force can be modeled as constant attractive force when the asperity density is large and the rms value of asperity peak height is small.
2004-03-22