Design and development of milliactuator embedded suspension for dual stage system in hard disk drives

Eo Jin Hong, Joon Hyun Yoon, No Cheol Park, Hyun Seok Yang, Young Pil Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To realize higher track density of HDD, the servo bandwidth should be higher, however, is limited by the mechanical resonances of the arm, coil of the VCM and ball bearing pivot. One approach to overcoming the problem is using dual stage servo system. For this system, we have suggested new milliactuator based on the shear mode of piezoelectric elements to drive the head suspension assembly. The initial model introduced is the APMRC 2002, and now we improve that model. The milliactuator is added flexure structure for femto slider and applied optimal design process. The objective function is to maximize frequencies of 2nd torsional mode and sway mode with stable compliance of the disk flutter. The improved suspension with milliactuator is analyzed about shock characteristics for mobile application.

Original languageEnglish
Title of host publicationAsia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0780387171, 9780780387171
DOIs
Publication statusPublished - 2004 Jan 1
Event2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004 - Seoul, Korea, Republic of
Duration: 2004 Aug 162004 Aug 19

Other

Other2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004
CountryKorea, Republic of
CitySeoul
Period04/8/1604/8/19

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Hard disk storage
Ball bearings
Servomechanisms
Bandwidth
Compliance
Optimal design

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Hong, E. J., Yoon, J. H., Park, N. C., Yang, H. S., & Park, Y. P. (2004). Design and development of milliactuator embedded suspension for dual stage system in hard disk drives. In Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004 [1521923] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMRC.2004.1521923
Hong, Eo Jin ; Yoon, Joon Hyun ; Park, No Cheol ; Yang, Hyun Seok ; Park, Young Pil. / Design and development of milliactuator embedded suspension for dual stage system in hard disk drives. Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc., 2004.
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Hong, EJ, Yoon, JH, Park, NC, Yang, HS & Park, YP 2004, Design and development of milliactuator embedded suspension for dual stage system in hard disk drives. in Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004., 1521923, Institute of Electrical and Electronics Engineers Inc., 2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004, Seoul, Korea, Republic of, 04/8/16. https://doi.org/10.1109/APMRC.2004.1521923

Design and development of milliactuator embedded suspension for dual stage system in hard disk drives. / Hong, Eo Jin; Yoon, Joon Hyun; Park, No Cheol; Yang, Hyun Seok; Park, Young Pil.

Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc., 2004. 1521923.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Hong EJ, Yoon JH, Park NC, Yang HS, Park YP. Design and development of milliactuator embedded suspension for dual stage system in hard disk drives. In Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004. Institute of Electrical and Electronics Engineers Inc. 2004. 1521923 https://doi.org/10.1109/APMRC.2004.1521923