Numerical simulation of the dynamic characteristics of the ultra-thin gas flow at the head/disk interface of hard disk drives

Author

Wei, Haodong ; Ao, Hongrui ; Jiang, Hongyuan

Author_Institution

Sch. of Mechatron. Eng., Harbin Inst. of Technol., Harbin, China

Volume

5

fYear

2010

fDate

26-28 Feb. 2010

Firstpage

259

Lastpage

262

Abstract

The Dynamic characteristics of ultra-thin gas film at the head/disk interface of hard disk drives were studied numerically. The modified Reynolds equation for the description of the dynamic behavior of gas flow was solved by using an approach based on PDE module and iteration method. Two kinds of typical slider profiles were used to testify the proposed numerical methods. The simulation results show that the rail profile and the flying height of the slider have great impact on the dynamic characteristics of the slider of hard disk drives.

Keywords

disc drives; flow; hard discs; iterative methods; numerical analysis; partial differential equations; thin films; PDE module; hard disk drives; head-disk interface; iteration method; modified Reynolds equation; numerical simulation; ultrathin gas flow; Convergence of numerical methods; Disk recording; Equations; Fluid flow; Hard disks; Magnetic heads; Magnetic levitation; Mechatronics; Numerical simulation; Rails; Ultra-thin film; gas flow; head/disk interface; numerical solution;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-5585-0

Electronic_ISBN

978-1-4244-5586-7

Type

conf

DOI

10.1109/ICCAE.2010.5451455

Filename

5451455