Active control of flow-induced vibrations inside hard disk drives
Date of Issue2013
International Congress on Sound and Vibration (20th : 2013 : Bangkok, Thailand)
School of Mechanical and Aerospace Engineering
This paper presents a study on active control of the flow-induced vibrations (FIVs) on head gimbals assemblies (HGA) inside hard disk drives (HDDs), including analogue demonstrations and digital close-loop implementations. The results show that the feedback pressure fluctuations generated by a piezoelectric disk inside the HDD can effectively suppress the FIVs on the HGA. The disk and HGA vibration modes inside the working HDD are also presented to understand the possible mechanism in current control.
DRNTU::Engineering::Computer science and engineering::Hardware
© 2013 International Institute of Acoustics and Vibration (IIAV).