作　　者： ; ; ;

机构地区： 清华大学机械工程学院摩擦学国家重点实验室

出　　处： 《摩擦学学报》 2007年第3期264-268,共5页

摘　　要： 通过数值方法分析范德华力对磁头承载力的影响以及随飞行姿态的变化规律.结果表明,范德华力主要作用在磁头滑块尾部的凸台上,当飞行高度低于10 nm后,范德华力使得滑块的承载能力明显降低,从而导致飞行高度下降.范德华力主要与飞行高度和俯仰角有关,随着飞行高度和俯仰角减小,范德华力使承载能力和俯仰转矩明显减小.范德华力对侧翻角的影响不敏感,随着侧翻角的增加,范德华力使滑块的承载能力和侧翻转矩略微减小.在磁头设计时,通过增加俯仰角和减小尾部凸台面积可以减小范德华力的影响. Influence of van der Waals force on the flying attitude of magnetic head slider was investigated numerically. The van der Waals force mainly acted on the rear pad of the slider. The loading capability decreased significantly under the influence of van der Waals force when flying height was smaller than 10 nm, which led the flyingheight to decrease. Numerical results show that the van der Waals force on slider height and pitch angle. The loading was mainly decided by flying capability and pitch moment decreased greatly under influence of van der Waals force with decreasing of flying height and pitch angle, however, van der Waals force was non-sensitive to roll angle. With decreasing of flying height and roll angle, the van der Waals force decreased the loading capability and roll moment slightly. Effect of van der Waals force can be reduced by increasing the pitch angle and reducing the trailing pad of the slider.

关 键 词： 范德华力 磁头 气体润滑

领　　域： [机械工程]