Title :
A study of the head disk interface shock failure mechanism
Author :
Kumar, Suresh ; Khanna, Vijay D. ; Sri-Jayantha, M.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
A study of the mechanics at the Head Disk Interface caused by an input shock is presented. Experimental results and a dynamic impact model are used to analyze the problem. The study reveals the complex nature of the failure and shows the importance of internal resonance and disk dynamics. Damage on both sides of the disk (due to a unidirectional shock) is explained
Keywords :
hard discs; magnetic heads; magnetic recording; shock measurement; contact start stop; disk dynamics; dynamic impact model; hard disk drives; head disk interface; input shock; internal resonance; portable environments; shock failure mechanism; unidirectional shock; Aluminum; Assembly; Capacitance; Cascading style sheets; Electric shock; Failure analysis; Hard disks; Production; Resonance; Space vector pulse width modulation;
Journal_Title :
Magnetics, IEEE Transactions on
