杂质颗粒对水润滑滑动轴承承载能力的影响  

Study on Influence of Particles in Water Film on the Loading Capacity of Water-lubricated Bearings

作　　者：刘维超[1] 刘宪伟[2] 

机构地区：[1]黑龙江科技学院计算机与信息工程学院,黑龙江哈尔滨150027 [2]装甲兵技术学院机械系,吉林长春130117

出　　处：《润滑与密封》2009年第6期62-65,共4页Lubrication Engineering

基　　金：国家自然科学基金资助项目(50775213);高校博士点专项科研基金资助项目(20050290011);黑龙江省青年学术骨干教师资助项目(1053G034)

摘　　要：杂质颗粒混入到润滑介质中会对水润滑滑动轴承承载能力产生一定的影响。根据多相流数值计算理论,利用湍流模型,选用欧拉-拉格朗日方法计算讨论了在水中杂质颗粒含量以及杂质颗粒直径对水润滑轴承承载能力的影响程度。数值计算结果表明,水中的杂质颗粒在一定含量范围内会提高水润滑轴承的承载能力,水润滑膜压力分布规律基本不受水中杂质颗粒含量变化的影响;在杂质颗粒直径小于水润滑膜最小膜厚的情况下,水中杂质颗粒直径的变化对水润滑滑动轴承承载能力的影响程度很小。The loading capacity of water-lubricated bearings is affected by particles in water film. Based on multiphase fluid numerical calculation theory, the influence of the content and grain diameter of particles in water film on the loading capacity of the water-lubricated bearing were researched and simulated by turbulence model Numerical calculation results reveal that, in some scope of content, the particles increase the loading capacity of water-lubricated film. The content of particles has less influence on pressure distribution of water-lubricated film. When the the grain diameter of particles is less than the minimum water-lubricated film thickness, the grain diameter of particles in water film has less influence on the load-carrying capacity of the water-lubricated beating.

关 键 词：杂质颗粒 水润滑滑动轴承 承载能力 

分 类 号：TH117.2[机械工程—机械设计及理论]