Flow induced slider vibration in a functional HDDI: Influence of air shroud

Author

Sundaravadivelu, K. ; Zhang, Q.D. ; Liu, N.Y. ; Ong, E.H. ; Yip, T.H. ; Chin, G.L.

Author_Institution

Mechatron. & Recording Channel Div., Data Storage Inst., Singapore

fYear

2009

fDate

14-16 Jan. 2009

Firstpage

1

Lastpage

2

Abstract

An air shroud is designed and placed within a commercially available hard disk drive operating at 15000 rpm. Turbulent air flow characteristics resulting from both the models, with and without air shroud, are compared and discussed. The wind blowing on the surfaces of the head gimbals assembly is converted into aerodynamic forces and the resulting positioning error due to off-track and out-of-plane displacements of various sliders are investigated. It is inferred the disk drive model with air shroud resulted in 21% and 40% less off-track and out-of-plane displacements respectively.

Keywords

disc drives; hard discs; vibrations; aerodynamic forces; air shroud; disk drive model; flow induced slider vibration; functional HDDI; hard disk drive; head gimbals assembly; off-track displacement; out-of-plane displacement; positioning error; turbulent air flow; Aerodynamics; Assembly; Disk drives; Error correction; Hard disks; Navier-Stokes equations; Performance analysis; Solids; Spinning; Transient analysis; Airflow; Head Gimbals Assembly; Large Eddy Simulation; Turbulence;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetic Recording Conference, 2009. APMRC '09. Asia-Pacific

Conference_Location

Singapore

Print_ISBN

978-9810-82191-3

Type

conf

DOI

10.1109/APMRC.2009.4925399

Filename

4925399