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
	2021-06
发表期刊	PHYSICS OF FLUIDS
ISSN	1070-6631
卷号	33 期号:6 页码:1ENG
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lubrication models are much higher than those by the laminar lubrication model, and the laminar flow assumption is no longer applicable to the actual operating conditions of the water-lubricated rubber bearings at a high Reynolds number.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.
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
DOI	10.1063/5.0053663
收录类别	EI ; SCOPUS ; SCIE
语种	英语
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
WOS记录号	WOS:000677517800015
出版者	AMER INST PHYSICS
EI入藏号	20212510520600
EI主题词	Lubrication
EI分类号	401.1 Bridges - 601.2 Machine Components - 607.2 Lubrication - 631.1 Fluid Flow, General - 818.1 Natural Rubber - 921.6 Numerical Methods
来源库	WOS
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148688
专题	能源与动力工程学院
通讯作者	Quan, Hui
作者单位	Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China
第一作者单位	能源与动力工程学院
通讯作者单位	能源与动力工程学院
第一作者的第一单位	能源与动力工程学院
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.