DocumentCode
2318978
Title
Flow induced vibration of head suspension assemblies in hard drives
Author
Tadepalli, Srinivas ; Anandan, Prashanth
Author_Institution
Seagate Technol., Bloomington, MN, USA
fYear
2002
fDate
27-29 Aug. 2002
Abstract
Aeroelastic effects are observed due to the airflow excitation on the head suspension assembly in disc drives. Experimentally measured off-track slider motion and out-of-plane suspension motion follow an analytical scaling with RPM suggesting the flow is turbulent at 15 kRPM and above. Actuator and head gimbal assembly (HGA) modes are observed to shift lower, indicating the mechanism of nonlinear aeroelastic interactions.
Keywords
disc drives; elasticity; hard discs; magnetic heads; magnetic recording; turbulence; vibrational modes; actuator modes; aeroelastic effects; airflow excitation; disc drives; flow induced vibration; hard drives; head gimbal assembly modes; head suspension assemblies; nonlinear aeroelastic interactions; off-track slider motion; out-of-plane suspension motion; turbulent flow; Actuators; Assembly; Delay; Disk drives; Fluid flow; Fluid flow measurement; Frequency; Hard disks; Motion analysis; Motion measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Magnetic Recording Conference, 2002. Digest of the Asia-Pacific
Conference_Location
Singapore
Print_ISBN
0-7803-7509-2
Type
conf
DOI
10.1109/APMRC.2002.1037629
Filename
1037629
Link To Document