Title :
Finite element analysis of the shock response and head slap behavior of a hard disk drive
Author :
Edwards, John R.
Author_Institution :
Western Digital Corp., San Jose, CA, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
A study of the shock response of a hard disk drive dropped from a height onto a surface with a specific contact stiffness is presented. A finite element model of the hard disk drive was developed and transient response analysis of the model was performed to evaluate the shock problem. The study shows why a disk drive is particularly sensitive to shock inputs with narrow pulse widths in the order of 0.5 to 1 millisecond
Keywords :
disc drives; finite element analysis; hard discs; impact (mechanical); magnetic heads; shock wave effects; transient response; finite element model; handling damage; hard disk drive; head slap; mechanical impact; shock response; surface contact stiffness; transient response; Actuators; Assembly; Electric shock; Finite element methods; Hard disks; Performance analysis; Performance evaluation; Space vector pulse width modulation; Transient analysis; Transient response;
Journal_Title :
Magnetics, IEEE Transactions on
