Thermal characteristics of a fixed disk drive

Author

Eibeck, Pamela A. ; Cohen, David J.

Author_Institution

Dept. of Mech. Eng., California Univ., Berkeley, CA, USA

fYear

1988

fDate

11-13 May 1988

Firstpage

137

Lastpage

141

Abstract

The thermal characteristics of an IMB 5.25-in fixed disk drive were experimentally determined to aid in the development of a general disk drive model. In general, the thermal model was able to predict the transient temperature profiles. At 4000 r.p.m., the steady-state temperature of the air and arms were predicted within 0.4°C, and the base temperature was predicted within 2.4°C. The air temperature was found to be uniform within experimental uncertainty outside of the disk stack, but was 1.4°C higher between corotating disks. The temperature predictions are extremely sensitive to the external heat transfer coefficients and the heat sources in put by the user. It was found that more fundamental information regarding viscous dissipation and air flow within a disk drive must be known to produce a reliable thermal model

Keywords

cooling; heat transfer; magnetic disc storage; 5.25 in; base temperature; corotating disks; disk drive model; external heat transfer coefficients; fixed disk drive; steady-state temperature; thermal characteristics; transient temperature profiles; viscous dissipation; Actuators; Arm; Disk drives; Heat transfer; Magnetic heads; Predictive models; Steady-state; Temperature measurement; Temperature sensors; Thermal expansion;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal Phenomena in the Fabrication and Operation of Electronic Components: I-THERM '88, InterSociety Conference on

Conference_Location

Los Angeles, CA

Type

conf

DOI

10.1109/ITHERM.1988.28693

Filename

28693