An Analysis of the Static and Dynamic Characteristics of Infinite Width Tilting-Pad Journal Bearings in Consideration of Ram-Prssure

선단압력을 고려한 무한폭 틸팅-패드 저어널 베어링의 정특성 및 동특성 해석

In this paper, the influence of ram-pressure on the static and dynamic characteristics of infinite width tilting-pad journal bearing is investigated theoretically. The ram-pressure is obtained by assumption of conservation of mechanical energy of the lubricant flow through the leading edge of the pad. The pressure in the lubricating film is numerically calculated using the ram-pressure obtained as the inlet pressure boundary condition of the pad. The static equilibrium state of tilting-pad journal bearing is determined by Newton-Raphson iteration method. A numerical results are presented in graphic form and relationships between the ram-pressure and the static and dynamic characteristics are discussed.