CAJ | 학술논문

基于VOF方法和滑移网格技术，研究喷射润滑下主轴承内部压力、温度场及油气体积比随转子转速及滑油流量的变化规律。给出滑油在轴承内的相界面分布，描述轴承内油膜分布及运动。结果表明：轴承内压力和油气两相在轴承内分布不均匀；油液体积分数随转速的升高而降低，随供油量的增加而增加，呈非线性关系；轴承内最高工作温度随主轴转速的增加而增加；轴承润滑效果与供油量有直接的关系，不同的转速下对应不同的最佳供油量。
기우VOF방법화활이망격기술，연구분사윤활하주축승내부압력、온도장급유기체적비수전자전속급활유류량적변화규률。급출활유재축승내적상계면분포，묘술축승내유막분포급운동。결과표명：축승내압력화유기량상재축승내분포불균균；유액체적분수수전속적승고이강저，수공유량적증가이증가，정비선성관계；축승내최고공작온도수주축전속적증가이증가；축승윤활효과여공유량유직접적관계，불동적전속하대응불동적최가공유량。
Based on the volume of fluid(VOF)method and sliding mesh technique,the effect of rotor speed and the oil inlet flow rate on the pressure,temperature field and oil volume fraction in the rolling bearing with spay lubrication were in-vestigated.The film distribution and movement in oil and air interface were showed.The results show that the pressure and the oil-air two-phase flow distribution is not homogenized in the bearing.The oil volume fractionis decreased with the in-crease of revolution speed,and is increased with speeding up the lubrication flow rate nonlinearly.The highest temperature of the bearing is increased with the increase of revolution speed.The effect of the bearing lubrication is directly related with the lubrication flow rate,and an optimum oil feeding rate exists at different rotor speed.