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

Abstract

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 bearing is determined by Newton-Raphson iteration method. A numerical results re presented in graph form and relationships between the ram-pressure and the static and dynamic characteristics are discussed.