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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Junho Seo Moonho Choi YoonChul Rhim |
| Copyright Year | 2012 |
| Description | Author affiliation: School of Mechanical Engineering, Yonsei University, Seoul 120-749, Korea (YoonChul Rhim) || Center for Information Storage Device (CISD) of Yonsei university, Seoul 120-749, Korea (Junho Seo) || Hyundai Heavy Industries Co. Ltd. (HHI), Ulsan 682-792, Korea (Moonho Choi) |
| Abstract | In general, the dynamic coefficients of a journal or a thrust bearing are evaluated by applying the perturbation method to the steady state Reynolds equation. Since the Reynolds equation neglects the inertia of the lubricant in a thin film, the dynamic coefficients for the thick film must be evaluated in a different way. In this study, the dynamic coefficients evaluated by a CFD package and experiments are compared to those evaluated by applying the perturbation method to the Reynolds equation for the thick fluid film. A disk damper of an HDD is used to evaluate the dynamic coefficients experimentally. The difference of the dynamic coefficients obtained in a different way becomes larger with the thickness of the fluid film due to the inertia of the lubricant in the film. |
| Starting Page | 1 |
| Ending Page | 2 |
| File Size | 237395 |
| Page Count | 2 |
| File Format | |
| ISBN | 9781467347341 |
| e-ISBN | 9789810720568 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-10-31 |
| Publisher Place | Singapore |
| Access Restriction | Subscribed |
| Rights Holder | DSI |
| Subject Keyword | Equations Computational fluid dynamics Lubricants Films Shock absorbers Hard disks Ports (Computers) hard disk drive (HDD) dynamic coefficients perturbation method inertia effect computational fluid dynamics (CFD) disk damper |
| Content Type | Text |
| Resource Type | Article |
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