Stress and vibration analysis of motor back plate in HDD

Geun Sub Heo, Oh Hyun Kang, Cheol Woo Park, Sang Ryong Lee, Choon Young Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In the present study, we have simulated stress characteristics and vibration modes in the back plate of head-stack driving motor of 2.5 inch small sized hard disk drives (HDDs). The magnets in head-stack driving motor have large magnetic fields, and therefore, the resulting large force may induce fracture and deformation in the back plate of the motor. Since the high-speed motion of head-stack motor generates high frequency vibration, we analyzed the vibration mode to avoid resonant frequency. ANSYS software was used in this study to check the deformation of back plate with the following design parameters: thickness of plate, the number of support beams, and the width of support beams. From the vibration mode analysis, we obtained a stable plate shape whose operating frequency is off the resonant frequency.

Original languageEnglish
Title of host publicationStructural Integrity and Failure, SIF 2010
Pages97-100
Number of pages4
DOIs
StatePublished - 2011
EventInternational Conference on Structural Integrity and Failure, SIF2010 - Auckland, New Zealand
Duration: 4 Jul 20107 Jul 2010

Publication series

NameAdvanced Materials Research
Volume275
ISSN (Print)1022-6680

Conference

ConferenceInternational Conference on Structural Integrity and Failure, SIF2010
Country/TerritoryNew Zealand
CityAuckland
Period4/07/107/07/10

Keywords

  • Hard disk drive
  • Stress analysis
  • Vibration mode

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