水润滑推力轴承全流态润滑性能数值模拟分析  

Numerical Analysis of All Flow State Lubrication Performance of Water-Lubricated Thrust Bearing

作　　者：邓啸 邓礼平[1] 黄伟[1] 刘立志[1] 赵雪岑[1] 刘松亚[1] 

机构地区：[1]中国核动力研究设计院反应堆系统设计技术重点实验室,成都610041

出　　处：《核动力工程》2015年第3期94-98,共5页Nuclear Power Engineering

摘　　要：综合考虑温度场以及弹性变形的影响,建立能够进行全流态润滑性能模拟分析的水润滑推力轴承数学模型。模型中,在水润滑推力轴承的润滑状态分区上,用雷诺数判断流态,超过临界雷诺数直接由层流润滑变为湍流润滑。用数值方法对模型的求解计算表明:温度变化很小因而几乎对润滑性能没有影响;弹性变形一定程度上降低了轴承的承载能力;湍流能显著地提升承载能力。A model enabling all different flow state lubrication performance simulation and analysis for water-lubricated thrust bearing is presented, considering the temperature influence and elastic deformation. Lubrication state in the model is changed directly from laminar lubrication to turbulent lubrication once Reynolds number exceeds the critical Reynolds number. The model is numerically solved and results show that temperature variation is too little to influence the lubrication performance; the elastic deformation can slightly reduce the load carrying capacity of the thrust bearing; and the turbulent lubrication can remarkably improve the load carrying capacity.

关 键 词：水润滑推力轴承 全流态 温度影响 弹性变形 

分 类 号：TL353[核科学技术—核技术及应用]