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Experimental Verification of the Optimal FDBs in a HDD Spindle Motor to Minimize Power Loss
- Authors
- Lee, Joung-Han; Lee, Min-Hyong; Jang, Gunhee
- Issue Date
- Jun-2013
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- Critical mass; fluid dynamic bearings (FDBs); friction torque; optimal design; power loss
- Citation
- IEEE Transactions on Magnetics, v.49, no.6, pp 2437 - 2440
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- IEEE Transactions on Magnetics
- Volume
- 49
- Number
- 6
- Start Page
- 2437
- End Page
- 2440
- ISSN
- 0018-9464
1941-0069
- Abstract
- This research experimentally verified the optimal design of the fluid dynamic bearings (FDBs) in a hard disk drive (HDD) spindle motor to minimize power consumption while maintaining the level of dynamic performance. HDD spindle motors with optimal FDBs were prototyped, and their power consumption and dynamic characteristics were measured and compared with those of conventional and simulated motors at various operating speeds. HDD spindle motors with optimal FDBs consume less power than conventional motors, as predicted in the proposed optimal design methodology.
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