Results 51 to 60 of about 146 (125)

Ultrastructural study of closed macular hole- preliminary application of a novel high magnification module combining with OCT. [PDF]

BMC Ophthalmol, 2021
Qiu CY, Shi YY, Zhao HW, Nie C, Dong MX, Zhang HQ, Zhao J, Xu QQ, Song FL, Guo XH, Shi L, Liu CY, Gong YB, Luo L.   +13 more
europepmc   +1 more source

The Accurate system numerical method for solving the mixed thermal elastic hydrodynamic lubrication

工程科学与技术, 2016
:The majority of mechanical parts worked under mixed lubrication conditions, especially for components worked under extreme conditions such as high speeds, heavy loads and surfaces with significant roughness.
wang xiao peng, wang jia xu, li wen guang, he tao, puwei   +4 more
doaj  

Effects of roller profile on grease lubrication and fatigue properties of RV reducer crankshaft

Engineering Applications of Computational Fluid Mechanics
Due to the prolonged operation of Rotate Vector (RV) reducers under harsh low-speed and heavy-load conditions, the crankshaft as its core transmission component is prone to fatigue failure.
Jianqi Guan, Zehua Han, Zhaoliang Cui, Yunfei Cai, Shengrong Chen, Rui Li, Xianghui Meng   +6 more
doaj   +1 more source

Phenotypic flexibility in heat production and heat loss in response to thermal and hydric acclimation in the zebra finch, a small arid-zone passerine. [PDF]

J Comp Physiol B, 2021
Wojciechowski MS, Kowalczewska A, Colominas-Ciuró R, Jefimow M.   +3 more
europepmc   +1 more source

Research on the Lubrication and Thermal Effects of Single-Metal Seals on Sealing Performance

Lubricants
This paper investigates the impact of lubrication and thermal effects on the performance of single-metal seals in roller cone bits, and it establishes the geometric, material, and operating parameter models for the single-metal seal.
Weidong Meng, Haijuan Wang, Hai Ma, Yi Zhang, Li Yao   +4 more
doaj   +1 more source

Lubrication Characteristics and Thermal Behavior of Non-Orthogonal Face Gear Pairs in Point Contact

Lubricants
The thermal elastohydrodynamic lubrication problem of non-orthogonal surface gear pairs under point contact conditions was studied. Firstly, a mathematical model is established through a comprehensive contact and lubrication analysis.
Xiaomeng Chu, Faqiang Chen, Jiangjun Wang   +2 more
doaj   +1 more source

A Method for Analyzing the Meshing Contact Performance of Real Tooth Surfaces of Spiral Bevel Gears

Lubricants
The meshing contact performance of spiral bevel gears is critical for transmission accuracy and service life but is inevitably influenced by manufacturing deviations.
Jing Deng, Hao Yang, Tianxing Li, Chuang Jiang, Shaoyang Li   +4 more
doaj   +1 more source

Effect of the operating temperature on thermal EHL performance of steel-POM gears

Jixie chuandong
ObjectiveThe temperature significantly influences the elastic modulus of polymer gears, which consequently affects their elastohydrodynamic lubrication performance.
ZHOU Jia’ao, LIU Xiaoling, ZHANG Zheng, LI Qun   +3 more
doaj  

Transient micro-elastohydrodynamic lubrication analysis of gear meshing interfaces with texture geometric parameters

Scientific Reports
To address gear pair Anti-Scuffing Load-Bearing Capacity (ASLBC), this study establishes a Thermal Elastohydrodynamic Lubrication (TEHL) model incorporating elastic deformation of Micro-Convex-Concave Asperity (MCCA) interfaces.
Weiqiang Zou, Xigui Wang, Yongmei Wang, Jiafu Ruan   +3 more
doaj   +1 more source

Molecular Dynamics simulations for constitutive modelling of TEHL

, 2021
Toraman, Gözdenur, Fauconnier, Dieter, Verstraelen, Toon   +2 more
openaire   +1 more source