Nonlinear air-bearing slider modeling for hard disk drives with ultra-low flying heights

被引:4
作者
Shi, Bao-Jun [1 ,2 ]
Li, H. Q. [1 ]
Shu, D. W. [2 ]
Zhang, Y. M. [1 ]
机构
[1] Shandong Jianzhu Univ, Sch Mech & Elect Engn, Jinan 250101, Peoples R China
[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
来源
COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING | 2009年 / 25卷 / 10期
基金
中国国家自然科学基金;
关键词
hard disk drive; air-bearing; flying height; slider; dynamics; DROP TEST SIMULATION; SHOCK RESPONSE; INTERFACE;
D O I
10.1002/cnm.1144
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
As the areal recording density increases in hard disk drives (HDDs), the physical spacing between the head/slider and the disk media reduces to a few nanometers and the likelihood of head/disk contact during full speed rotation increases. Therefore, the dynamics of air-bearing sliders with ultra-low flying heights (FHs) becomes an important issue for HDDs. Two nonlinear air-bearing models are proposed to investigate the dynamic behavior of air-bearing sliders for HDDs with ultra-low FHs. A modified Newmark beta method is developed for solving the nonlinear dynamic equation. Parametric studies are conducted to further investigate the dynamic property of the air-bearing slider models. Numerical results show obvious nonlinear behavior for air-bearing sliders with ultra-low FHs. Copyright (C) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码:1041 / 1054
页数:14
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