Effect of different turbulent lubrication models on the lubrication characteristics of water-lubricated rubber bearings at a high Reynolds number

doi:10.1063/5.0053663

	Effect of different turbulent lubrication models on the lubrication characteristics of water-lubricated rubber bearings at a high Reynolds number
	Du, Yuanying; Lan, Jianying; Quan, Hui; Sun, Chenxi; Liu, Xiaoyi; Yang, Xueling
刊名	PHYSICS OF FLUIDS
	2021-06
卷号	33 期号:6 页码:1ENG
关键词	Bearing capacity Bearings (structural) Deformation Finite difference method Laminar flow Nonmetallic bearings Reynolds number Rubber Turbulence models High Reynolds number Lining deformation Lubrication characteristics Lubrication models Lubrication theory Operating condition Water film thickness Water lubricated rubber bearings
ISSN号	1070-6631
DOI	10.1063/5.0053663
英文摘要	To study the lubrication characteristics of water-lubricated rubber bearings under high-Reynolds-number operating conditions, four different turbulent lubrication mathematical models are used. With these models, adopting the finite difference method, initially, the distributions of the Reynolds number, water film thickness, lining deformation, and film pressure are analyzed. Second, for the same models, the variation in the Reynolds number with the eccentricity is investigated. Third, the bearing capacity and maximum film pressure variation with the eccentricity, rotating speed, and clearance ratio for the four turbulent lubrication models are examined. The results show that the lining deformation and maximum film pressure of the above models are larger than those of laminar lubrication models, and according to the importance of descending orders, they are as follows: Aokihiro-Harada Masahiro turbulence model, Ng-Pan model, Constantinescu model, and Hirs model; the type of the lubrication model has a little effect on the Reynolds number. The bearing capacity and film pressure calculated by the turbulent lubrication models are much higher than those by the laminar lubrication model, and the laminar flow assumption is no longer applicable to the actual operating conditions of the water-lubricated rubber bearings at a high Reynolds number. Concurrently, the Aokihiro-Harada Masahiro turbulent lubrication theory is more accurate than the other three lubrication models. With the increase in the eccentricity and rotational speed, the bearing capacity and maximum film pressure increase non-linearly and approximately linearly, respectively. By contrast, with the increase in the clearance ratio, the bearing capacity exhibits a non-linear decrease, whereas the pressure increases approximately linearly.
WOS研究方向	Mechanics ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000677517800015
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148688]
专题	能源与动力工程学院
作者单位	Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Du, Yuanying,Lan, Jianying,Quan, Hui,et al. Effect of different turbulent lubrication models on the lubrication characteristics of water-lubricated rubber bearings at a high Reynolds number[J]. PHYSICS OF FLUIDS,2021,33(6):1ENG.
APA	Du, Yuanying,Lan, Jianying,Quan, Hui,Sun, Chenxi,Liu, Xiaoyi,&Yang, Xueling.(2021).Effect of different turbulent lubrication models on the lubrication characteristics of water-lubricated rubber bearings at a high Reynolds number.PHYSICS OF FLUIDS,33(6),1ENG.
MLA	Du, Yuanying,et al."Effect of different turbulent lubrication models on the lubrication characteristics of water-lubricated rubber bearings at a high Reynolds number".PHYSICS OF FLUIDS 33.6(2021):1ENG.