Free boundary of journal bearing with spiral groove in HDD

• Autorzy: Lu P. , Xiao D. , Zhou G.
• Języki publikacji: EN

Abstrakty

EN

In a self-sealing journal bearing with spiral grooves, the bearing gap is not actually fully filled with lubricant. Specially at the seal interfaces, the so-called free boundary between the lubricant and ambient air is formed. A free boundary does not only influence the load-capacity and stability of a bearing, more importantly, it affects the bearing dynamic sealing capability. In this paper, an analytical model and numerical procedure is developed to investigate the free boundary of a journal bearing with spiral grooves. The simulation results are discussed on how the bearing parameters may affect free boundary and its impact on the bearing leakage. The approach establishes a base for precise calculation of performance parameters and optimization design of a journal bearing with spiral grooves in HDD.

Słowa kluczowe

EN

journal bearing; lubrication; hydrodynamic bearing (HDB); spindle motor; free boundary; finite element method; hard disk drive (HDD)

PL

smarowanie; łożysko; metoda elementów skończonych

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2002
• Tom: Vol. 7, no 3
• Strony: 859--874
• Opis fizyczny: Bibliogr. 11 poz. , rys., wykr.

Twórcy

autor

Lu P.

• Huazhong University of Science and Technology School of Computer Science and Technology 430074, Wuhan, Hubei, CHINA

autor

Xiao D.

• Huazhong University of Science and Technology School of Computer Science and Technology 430074, Wuhan, Hubei, CHINA

autor

Zhou G.

• Huazhong University of Science and Technology School of Computer Science and Technology 430074, Wuhan, Hubei, CHINA

Bibliografia

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