Effect of an hourglass-shaped sleeve on the performance of the fluid dynamic bearings of a HDD spindle motor
- Authors
- Lee, Jihoon; Lee, Minho; Jang, Gunhee
- Issue Date
- Aug-2014
- Publisher
- SPRINGER HEIDELBERG
- Citation
- MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, v.20, no.8-9, pp.1435 - 1445
- Indexed
- SCIE
SCOPUS
- Journal Title
- MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
- Volume
- 20
- Number
- 8-9
- Start Page
- 1435
- End Page
- 1445
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159412
- DOI
- 10.1007/s00542-014-2136-5
- ISSN
- 0946-7076
- Abstract
- This research investigated the characteristics of fluid dynamic bearings (FDBs) in a HDD spindle motor with an hourglass-shaped sleeve. We demonstrated experimentally that the hourglass-shaped sleeve generated through the ball-sizing process is a major source of large repeatable runout and non-repeatable runout in a HDD spindle system. We also numerically proved the effect of hourglass-shaped sleeves on pressure, friction torque, stiffness and damping coefficients, critical mass, and shock response. Finally, we proposed a robust design for FDBs with hourglass-shaped groove depths to compensate for the decrease in the static and dynamic performance of FDBs with hourglass-shaped sleeves. The proposed hourglass-shaped groove depth improves the performance of FDBs with both straight and hourglass-shaped sleeves.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.