DOI QR코드

DOI QR Code

Free and Forced Vibration Analyses of HDD Spindle Systems Supported by Hydrodynamic Bearings

유체 동압 베어링 지지 HDD 스핀들 계의 자유 및 강제 진동 해석

  • Published : 2003.11.01

Abstract

In order to meet the growing demands for higher storage density as well as lower noise level, the spindles in hard disk drives are to be supported by hydrodynamic bearings in place of conventional ball-type ones. However, the existing models are inappropriate to apply to accurate prediction of vibration characteristics because the HDD spindle tends to take quite a complex shape to secure its performance and cost-effectiveness. In this context, this paper treats analysis of free and forced vibrations of such-designed HDD spindles based on more sophisticated models and validations via experiments. Remarkably, to this end all the components in the system are modeled as elastic adopting the finite element method.

Keywords

References

  1. 전상복, 이종원. 1997. "축-이중 원판계의 진동해석.' 대한기계학회 논문집(A), 제21권, 제6호, pp.896-906.
  2. Jia, H. S., Chun, S. B. and Lee, C. W., 1997. 'Evaluation of the Longitudinal Coupled Vibrations in Rotating, Flexible Disks/Spindle Systems'. Journal of Sound and Vibration, Vol. 208, No.2, pp. 175-187. https://doi.org/10.1006/jsvi.1997.1127
  3. Jintanawan, T. and Shen, I. Y., 2000, 'Free Vibration of a Rotating Disk Pack and Spindle Motor System with a Rotating-shaft Design,' Journal of Information Storage Processing Systems. Vol. 2. pp. 1-11.
  4. Lim, S.. 2000. 'Finite Element Analysis of Flexural Vibrations in Hard Disk Drive Spindle Systems.' Journal of Sound and Vibration, Vol. 234, No.4, pp. 601-616.
  5. 임승철, 2000. "하드디스크 드라이브 회전축계의 강제 진동해석", 한국소음진동공학회 춘계학술대회 논문집, pp.1601-1608.
  6. Dimarogonas, A. D. and Haddad, S., 1992. Vibration for Engineers. Prentice Hall.
  7. 윤진옥, 장건희, 2003. "홈이 회전하는 빗살무늬 저널 베어링의 안정성 해석", 한국소음진동공학회논문집, 제13권, 제4호, pp.247-257. https://doi.org/10.5050/KSNVN.2003.13.4.247
  8. Stachowiak, G. W. and Batchelor, A. W., 2000. Engineering Tribology. Elsevier.