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(機械力学,計測,自動制御)

概要

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We calculated the characteristics of contact force and adhesion force between a contact pad and a magnetic disk surface which has computer-generated asperities with Gaussian distribution. In calculation, we considered asperity contact, bulk deformation and meniscus force of the lubricant. First by comparing the results of our model with numerical GW model, 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 cases of current slider and disk surfaces. Next, we examined effects of asperity density, contact pad area, rms value of the peak height, asperity radius and lubricant thickness on the resultant contact force, adhesion force and the contact stiffiness as a function of separation between contact pad and disk. It was found that the rough surface can be modeled by a simple bulk contact force and attractive force can be modeled as a constant adhesion force when the asperity density is large and the rms value of asperity peak height is small as the cases of current slider and disk conditions.
一般社団法人日本機械学会の論文
2005-09-25