Vibration analysis of inhomogeneous elastica in hard disk drives

Author

Ching-Chen Chen ; Jen-Yuan Chang

Author_Institution

Dept. of Power Mech. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

2012

fDate

Oct. 31 2012-Nov. 2 2012

Firstpage

1

Lastpage

2

Abstract

Reduction of flexible cable vibrations has been one of the engineering dynamics focus in magnetic recording disk drives. This paper investigates the effect of effect of inhomogeneous composition on the flexible cable´s mode shapes through parameter studies using experimental image processing and finite element method. It is found that placement and design of the inhomogeneous composition such ad damper or PZT film can significantly alter the cable´s modal shape and modal displacements, which potentially can be used to reduce transmission of the cable´s vibrations onto the rotary actuator.

Keywords

cables (mechanical); disc drives; finite element analysis; hard discs; image processing; magnetic recording; mechanical engineering computing; modal analysis; piezoelectric devices; vibration control; PZT film; damper; engineering dynamics; experimental image processing; finite element method; flexible cable modal shape; flexible cable vibration reduction; hard disk drives; inhomogeneous composition; inhomogeneous elastica; magnetic recording disk drives; modal displacements; rotary actuator; transmission reduction; Hard disks; Magnetic analysis; Magnetic films; Magnetic heads; Magnetoelasticity; Nonhomogeneous media; Vibrations; Flex Cable; HDD; Mode Shapes; PVDF; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

APMRC, 2012 Digest

Conference_Location

Singapore

Print_ISBN

978-1-4673-4734-1

Type

conf

Filename

6407549