High-speed stability of a rigid rotor supported by aerostatic journal bearings with compound restrictors
| Autor: | Yuta Otsu, Shigeka Yoshimoto, Kei Somaya |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Engineering
business.industry Mechanical Engineering media_common.quotation_subject Aerostatic bearing Mechanical engineering Stiffness Rotational speed Surfaces and Interfaces Tribology Inertia Stability (probability) Surfaces Coatings and Films Printed circuit board Mechanics of Materials medicine Rigid rotor medicine.symptom business media_common |
| Zdroj: | Tribology International. 44:9-17 |
| ISSN: | 0301-679X |
| DOI: | 10.1016/j.triboint.2010.09.007 |
| Popis: | Demands for higher rotational speed and accuracy for effective manufacture of small holes on printed circuit boards and very small precise parts have been increasing remarkably. Aerostatic journal bearings with compound restrictors have greater stiffness than those with conventional inherently compensated restrictors and are one of the most effective candidates to satisfy these demands. In this work, the instability of a rigid rotor supported by aerostatic journal bearings with compound restrictors was investigated numerically and experimentally. It was found that this type of aerostatic bearings showed a much higher threshold speed for instability compared with bearings with inherently compensated restrictors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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