CAJ | 학술논문

以船舶艉轴承为研究对象，基于质量守恒边界条件，编制相应的润滑仿真程序，研究艉轴承的润滑性能，探讨轴承润滑性能随轴承运行参数（如转速、轴承宽度、外载荷及空穴压力等）变化的规律。研究表明：质量守恒边界条件相比于雷诺边界条件，更加接近实际情况；空穴压力的增大并不总是有损轴承的承载力；随着空穴压力和轴承宽度的增大，偏心率和最大油膜压力都减小；随着外载荷的增加，油膜压力和空穴区域大小逐渐增大，呈现出很强的非线性趋势；随着转速的增大，油膜压力峰值减小；空穴区域随转速增大而增大，其位置会向最大轴承间隙处移动。
이선박미축승위연구대상，기우질량수항변계조건，편제상응적윤활방진정서，연구미축승적윤활성능，탐토축승윤활성능수축승운행삼수（여전속、축승관도、외재하급공혈압력등）변화적규률。연구표명：질량수항변계조건상비우뢰낙변계조건，경가접근실제정황；공혈압력적증대병불총시유손축승적승재력；수착공혈압력화축승관도적증대，편심솔화최대유막압력도감소；수착외재하적증가，유막압력화공혈구역대소축점증대，정현출흔강적비선성추세；수착전속적증대，유막압력봉치감소；공혈구역수전속증대이증대，기위치회향최대축승간극처이동。
The lubricating properties of the ship stern bearing were studied by using the JFO boundary condition and programming the corresponding lubrication simulation program.The influences of operation parameters,such as speed,bear-ing width,external load and cavity pressure on the lubricating properties were analyzed.The research results show that, compared with the Reynolds boundary condition,the JFO boundary condition is closer to reality.Cavity pressure doesn’t always undermine the bearing carrying capacity.The increase of cavity pressure and bearing width all causes the decrease of eccentricity and maximum oil film pressure,the increase of external load leads to the augment of oil film pressure and cavity at a nonlinear trend,and the increase of speed causes the reduction of the maximum oil film pressure.The size of cavity expands with the increasing of speed and its position moves toward the maximum clearance of bearing.