Contact analysis of laser textured disks in magnetic head–disk interface

摘要: Friction and wear behavior of a laser textured disk surface in contact with magnetic head slider depends on the shape size bumps, number mechanical properties surfaces. In this study, analytical expressions for height distributions sombrero- donut-shaped commonly used applications, have been developed. These are to generate bumps computer. Contact analyses these surfaces carried out using numerical methods. Expressions calculation meniscus forces spherical cylindrical rims derived. An method is developed calculate forces, area optimum constant height, as function bump minimize plastic deformation stiction. A generalized model, earlier random surfaces, analysis distribution. Design curves generated estimate given distribution, yield stress surface. areas (pressure) two geometries rim radius compared. It observed that at stress, result lower force compared sombrero-shaped bumps.