Title :
Nonlinear dynamic model of a pivot ball bearing in hard disk drive including the hertzian contact force
Author :
Yoon, J. ; Park, N. ; Park, K. ; Park, Y.
Author_Institution :
Yonsei Univ., Seoul, South Korea
Abstract :
An areal density in magnetic recording commercialization hard disk drives(HDD) is 1.2 TB/in2. It will be 1.5 TB/in2 in 2016. The head-positioning control should be more accuracy because of the high magnetic density in HDD. Previous studies of head-positioning control are considered pivot friction torque or dual actuator control system. These are not considered structural characteristic of pivot ball bearing.
Keywords :
ball bearings; disc drives; hard discs; magnetic heads; magnetic recording; HDD; Hertzian contact force; areal density; hard disk drives; head-positioning control; magnetic density; magnetic recording; nonlinear dynamic model; pivot ball bearing; Actuators; Ball bearings; Coordinate measuring machines; Force; Hard disks; Nonlinear dynamical systems; Voltage measurement;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157694
