Numerical modeling for the characterization of flow excitation for the HDD disk vibration control

J. C. Koo, S. W. Kang, Y. S. Han, Y. S. Choi

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

1 Scopus citations

Abstract

This article presents a modeling method for air flow analysis of a hard disk drive. Air flow excitation causes disk vibration that aggravates TMR budget of the design of modern high performance hard drives. And it is the most expensive budget consumer so that controlling of the flutter becomes the primary design issue of the data storage industry. In the presented work, air flow excitation forces are characterized by LES modeling and the results are verified with experiments. A squeeze-film-type disk damper is employed in the experiments and it is applied for a hardware design improvement for disk flutter reduction. LES and RANS are compared and alternately used in a calculation in order to minimize computational efforts.

Original languageEnglish
Title of host publicationAdvances in Safety and Structural Integrity 2005 - Proceedings of the International Symposium on Safety and Structural Integrity
PublisherTrans Tech Publications Ltd
Pages143-150
Number of pages8
ISBN (Print)3908451159, 9783908451150
DOIs
StatePublished - 2006
EventInternational Symposium on Safety and Structural Integrity - Singapore, Singapore
Duration: 17 Jan 200520 Jan 2005

Publication series

NameSolid State Phenomena
Volume110
ISSN (Print)1012-0394

Conference

ConferenceInternational Symposium on Safety and Structural Integrity
Country/TerritorySingapore
CitySingapore
Period17/01/0520/01/05

Keywords

  • Flow induced vibration
  • HDD
  • LES
  • RANS

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