学海网

外文翻译：乳化液泵的轴承磨损故障诊断，中文翻译共7页，2463字
摘要：通过计算分析曲柄轴承的总负载演出连杆曲轴机械雷诺方程，流体动力润滑方程在满足曲轴的边界条件下成立, 利用荷兰当时的方法解决了获得了轴的常规轨迹，作为曲柄轴承，增加侵蚀偏心裂纹，相应最小油膜厚度逐渐增加。最终使金属表面的曲柄销和轴承油膜破裂摩擦，实验结果表明，通过连杆自振频率的变化特征可以正确识别出这种磨损情况，通过高频带的能量准确的预测磨损的程度。
关键词：乳液泵；曲柄轴承；磨损；诊断

外文题目：Wear fault diagnosis of an emulsion pump crank bearing
Abstraet：The total load on a crank bearing was calculated by performing a load analysis of the crank connecting rod mechanism．
The Reynolds equation for hydrodynamic lubrication of the crank bearing was established at the Reynolds boundary condition and
was then solved using the Holland method．From this the regular track of the bearing axis was obtained．As the crank bearing
gradually wears the eccentricity ratio corresponding to the minimum oil film thickness increases gradually．Th e oil·bound film
eventually breaks down，which allows friction and collision between the metal surfaces of the crank pin an d the bearing．Th e rigid
impact leads to excitation of high frequency vibrations at the natural frequencies of the connecting rod．Th e experiments show that
the wear condition of the crank bearing can be identified correctly through the vibration signature at the natural frequencies of the
connecting rod．Th e degree of wear can  be predicted accurately through the energy content of the high freq uency ban ds．
Key words：emulsion pump；cran k bearing；wear；diagnosis