한국윤활학회:학술대회논문집 (Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference)
- 한국윤활학회 2001년도 제33회 춘계학술대회 개최
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- Pages.231-235
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- 2001
2열 외부가압 공기 저어널 베어링에서 공기 급기구 위치에 따른 동적계수에 관한 실험적 연구
A Expermental Study on the Dynamic Coefficients according to the Source Positions in Externally Pressurised Air-lubricated Journal Bearing with Two Row Sources
초록
This paper has been presented the dynamic effect by the journal speed. eccentricity and source positions in order to overcome the defects of air bearing such as low stiffness and damping coefficient. Choosing the two row source position of air bearing is different from previous investigations in the side of pressure distribution of air film by the wedge effects. These optimal chooses of the two row source positions enable us to improve the performance of the film reaction force and loading force as making the high speed spindle. The results of investigated characteristics may be applied to precision devices like ultra-precision grinding machine and ultra high speed milling.