Paper Title:
Stress and Vibration Analysis of Motor Back Plate in HDD
  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.

  Info
Periodical
Edited by
George Ferguson, Ashvin Thambyah, Michael A Hodgson and Kelly Wade
Pages
97-100
DOI
10.4028/www.scientific.net/AMR.275.97
Citation
G. S. Heo, O. H. Kang, C. W. Park, S. R. Lee, C. Y. Lee, "Stress and Vibration Analysis of Motor Back Plate in HDD", Advanced Materials Research, Vol. 275, pp. 97-100, 2011
Online since
July 2011
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$32.00
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