Dynamic characteristics of optical disk over 15,000 rpm close to a rigid wall

Seungho Lim, Wonseok Oh, Byunghan Ko, Ungrae Cho, Kyoung Su Park, No Cheol Park, Young Pil Park, Han Baek Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For the high data transfer rate of optical disk, the rotational speed is increased over 15,000 rpm and the airflow between the rotating disk and rigid wall has become more and more important for the identification of the dynamic characteristics in case of the slim optical disk drive. Thus this airflow is simulated and considered for the modal analysis of the rotating disk via analytical method and finite element method. In addition, the natural frequency variation of the primary mode and the rigid body mode are observed. The calculated dynamic characteristics of the rotating disk based on the numerical model are available for the prediction of the Non-repeatable runout (NRRO) for the servo controller design.

Original languageEnglish
Title of host publicationJoint International Symposium on Optical Memory and Optical Data Storage, ISOM_ODS 2011
PublisherOptical Society of America (OSA)
ISBN (Print)9781557529152
DOIs
Publication statusPublished - 2011
EventJoint International Symposium on Optical Memory and Optical Data Storage, ISOM_ODS 2011 - Kauai, HI, United States
Duration: 2011 Jul 172011 Jul 20

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherJoint International Symposium on Optical Memory and Optical Data Storage, ISOM_ODS 2011
CountryUnited States
CityKauai, HI
Period11/7/1711/7/20

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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    Lim, S., Oh, W., Ko, B., Cho, U., Park, K. S., Park, N. C., Park, Y. P., & Lee, H. B. (2011). Dynamic characteristics of optical disk over 15,000 rpm close to a rigid wall. In Joint International Symposium on Optical Memory and Optical Data Storage, ISOM_ODS 2011 (Optics InfoBase Conference Papers). Optical Society of America (OSA). https://doi.org/10.1364/isom_ods.2011.otuc5