This research investigates the Monte Carlo simulation of manufacturing tolerance of FDBs to identify the sensitive design variables for the friction torque of fluid dynamic bearings (FDBs) and the critical mass of disk-spindle system supported by FDBs. We analyze the characteristics according to design variables of FDBs and it shows that the clearance of journal bearing is most sensitive design variable of both friction torque and critical mass. Also the groove to groove and ridge ratio and groove depth of grooved journal bearing which are manufactured by ECM are also sensitive to determine the friction torque and the critical mass of the FDBs, respectively. This research can be utilized to manage manufacturing tolerance to maintain the consistent performance of FDBs and a disk-spindle system in a HDD.
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ASME 2014 Conference on Information Storage and Processing Systems
June 23–24, 2014
Santa Clara, California, USA
Conference Sponsors:
- Information Storage and Processing Systems Division
ISBN:
978-0-7918-4579-0
PROCEEDINGS PAPER
Monte Carlo Simulation of the Manufacturing Tolerance of FDBs to Identify the Sensitive Design Variables Affecting the Performance of a Disk-Spindle System
G. H. Jang
G. H. Jang
Hanyang University, Seoul, Korea
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J. H. Lee
Hanyang University, Seoul, Korea
M. H. Lee
Hanyang University, Seoul, Korea
H. K. Jang
Hanyang University, Seoul, Korea
G. H. Jang
Hanyang University, Seoul, Korea
Paper No:
ISPS2014-6950, V001T05A005; 3 pages
Published Online:
August 15, 2014
Citation
Lee, JH, Lee, MH, Jang, HK, & Jang, GH. "Monte Carlo Simulation of the Manufacturing Tolerance of FDBs to Identify the Sensitive Design Variables Affecting the Performance of a Disk-Spindle System." Proceedings of the ASME 2014 Conference on Information Storage and Processing Systems. 2014 Conference on Information Storage and Processing Systems. Santa Clara, California, USA. June 23–24, 2014. V001T05A005. ASME. https://doi.org/10.1115/ISPS2014-6950
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