东南大学学报（自然科学版）Issue(6)：1238-1242,5.DOI:10.3969/j.issn.1001-0505.2013.06.020
分子间作用力对超低飞高磁头动态飞行特性的影响
Effects of intermolecular forces on dynamic flying characteristics of an ultra-low flying height slider
摘要
Abstract
The Reynolds lubrication and motion equations of a pico slider with a fly height of 3.5 nm is resolved by using the finite control volume method and the third-order Runge-Kutta method. The influence of intermolecular forces on the flying attitude of the slider when it flies over a rectan-gular step on the disk is studied,and time-domain analysis of the interface between the slider and disk is conducted.Simulation results show that the dynamic flight stability of the slider is destroyed by intermolecular forces between the slider and the disk when the slider flies over a rectangular step on the disk in a system with an ultra-low flying height,which is an important factor in causing inter-face failures between the slider and the disk.Furthermore,approaches to reducing intermolecular forces are proposed,such as rationally designing the geometric parameters of the slider to reduce the area of the rear pad of the slider,and improving the surface evenness of the disk,which can further improve the stability of the interface between the slider and the disk.关键词
硬盘磁头/动态特性/分子间作用力/飞行姿态/时域Key words
hard disk slider/dynamic characteristics/intermolecular force/flying characteristics/time domain分类
机械制造引用本文复制引用
王玉娟,梁丽,陈云飞..分子间作用力对超低飞高磁头动态飞行特性的影响[J].东南大学学报（自然科学版）,2013,(6):1238-1242,5.基金项目
国家自然科学基金资助项目（50505007）． （）
