The acoustic noise characteristics of HDD due to the structural excitation of spindle motor

Young Son, Tae Yeon Hwang, Seong Woo Kang, Yun Sik Han, Ja Choon Koo

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

2 Scopus citations

Abstract

HDD structure is excited by the dynamic motion of disk-spindle motor components. Those excitations which are generated from stator, magnet rotor, bearings and disks, are transmitted through motor spindle and flange to HDD cover and base. The operational deflection shape measurement can show the structural elicitation patterns at the most influential frequency of the acoustic noise level. One of those components is the axial excitation along spindle, and the other is the local orbital excitation at the contact area of motor flange and base. In order to make a reduction of those structural transmission excitations, the structure of spindle motor should be modified to the direction of reinforcement at transmission path. Some excitation of spindle motor component carrying out essential function is unavoidable. So it is the efficient may of HDD noise improvement to control the structural transmission of excitation.

Original languageEnglish
Title of host publication2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD
PublisherInstitute of Electrical and Electronics Engineers Inc.
PagesMP8/1-MP8/2
ISBN (Electronic)0780362543, 9780780362543
DOIs
StatePublished - 2000
Externally publishedYes
EventAsia-Pacific Magnetic Recording Conference, APMRC 2000 - Tokyo, Japan
Duration: 6 Nov 20008 Nov 2000

Publication series

Name2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD

Conference

ConferenceAsia-Pacific Magnetic Recording Conference, APMRC 2000
Country/TerritoryJapan
CityTokyo
Period6/11/008/11/00

Keywords

  • Acoustic Noise
  • Hard Disk Drive
  • Operational Deflection Shape
  • Spindle Motor

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