考虑进油孔有限长滑动轴承油膜力的近似解析解  

Approximate solution of nonlinear oil film forces of finite length slide journal bearing by considering oil inlet hole

作　　者：黑棣[1] 郑美茹[1] 

机构地区：[1]陕西铁路工程职业技术学院机电工程系,陕西渭南714000

出　　处：《机电工程》2016年第11期1315-1321,共7页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目(51375380);陕西铁路工程职业技术学院常规项目(KY2015-48)

摘　　要：针对具有进油孔的有限长滑动轴承油膜力求解问题,采用变分原理和分离变量法,求得了有限长滑动轴承油膜压力分布的近似解析表达式。将油膜压力分布的近似解析表达式在油膜存在区域上进行积分,即得到了油膜力。将提出的计算有限长滑动轴承油膜力方法与无限长轴承模型、有限元方法的计算结果进行了比较,发现了提出的方法与有限元方法的计算结果很接近。最后,研究了进油孔位置和进油压力对油膜存在区域、油膜力等的影响,研究结果表明进油孔位置和进油压力对油膜存在区域和油膜力有较大的影响。Aiming at the solution of oil film force of finite length slide bearing with oil inlet hole,the approximate analytical expression of the oil film pressure distribution of finite length bearing was presented by method of variational principle and the separation of variables. Oil film force could be obtained by integrating the approximate analytical expression of the oil film pressure distribution in the oil film field. The comparison was implemented between the presented calculation method of oil film force,infinite length bearing model and FEM. The results calculated by the presented method were in good agreement with FEM. Finally,the influences of the oil inlet position and oil inlet pressure on the oil film field and oil film force were studied. The research results show that the oil inlet position and oil inlet pressure can produce a significant effect on the oil film field and oil film force.

关 键 词：油膜力 有限长轴承 进油压力影响 进油孔位置影响 近似解析解 

分 类 号：TH133[机械工程—机械制造及自动化]