Results 11 to 20 of about 5,635 (264)

Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring [PDF]

open access: yesE3S Web of Conferences, 2021
To solve the practical problem of Stirling engine piston ring, numerical model on friction and lubrication were established based on average Reynolds equation theory.
Songjian Li   +3 more
doaj   +1 more source

Numerical Analysis on Improving the Rectangular Texture Floating Ring Gas-film Seal Characteristics with Different Bottom Shapes [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Finding the right texture pattern to effectively improve the sealing performance of the floating ring gas film seal has always been a topic of interest for engineers.
W. Shipeng   +3 more
doaj   +1 more source

Study on Sealing Characteristics of Compliant Foil Face Gas Seal under Typical Hypervelocity Gas Effects

open access: yesLubricants, 2023
In order to investigate the influence of typical hypervelocity gas effects on the gas lubrication performance of compliant foil face gas seal (CFFGS) end surfaces, the gas–elastic coupling lubrication theory model of CFFGS is modified by considering the ...
Yuan Chen   +5 more
doaj   +1 more source

Development and Performance Measurements of Gas Foil Polymer Bearings with a Dual-Rotor Test Rig Driven by Permanent Magnet Electric Motor

open access: yesApplied Sciences, 2022
The rotordynamic stability of journal gas foil–polymer bearings (GFPBs) applied to a dual-rotor bearing system was investigated. The GFPB has a high damping structure, i.e., it has an additional polymer layer, and top/bump/bottom foil structures.
Jisu Park, Donghee Kim, Kyuho Sim
doaj   +1 more source

Electromagnetic Characteristics and Modal Analysis of Multi-DOF Motors With Air-Floation

open access: yesIEEE Access, 2022
In this paper, based on the multi-DOF motor, the structure is optimized and gas lubricated bearings are added, and the structure of the multi-of motor is proposed. Firstly, the basic structure and working principle of the motor are described. Through the
Zheng Li   +5 more
doaj   +1 more source

The numerical study of static and dynamic characteristics of multi-layer protuberant foil bearing

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
Multi-layer protuberant foil bearings uses multi-layers of protuberant foils as the elastic support structure to support the smooth top foil. A numerical model with a computational method is developed in this paper to predict the characteristics of the ...
Yu HOU   +4 more
doaj   +1 more source

Numerical analysis of aerodynamic lubricated double-decked protuberant foil thrust bearing

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
Double-decked protuberant foil bearing is a type of foil bearing that uses two stacking-up layers of protuberant foils as supporting structure. In preliminary experiments, wear failure of foil thrust bearing occurs occasionally due to excessive axial ...
Yu GUO   +5 more
doaj   +1 more source

Effect of Surrounding Gas on Cavitation in EHL

open access: yesTribology Online, 2009
Relationship between cavitation in elastohydrodynamic lubrication and surrounding gas was investigated in order to understand lubrication in various gas environments. Lubricated point contact sliding test was conducted in a sealed chamber.
Takefumi Otsu   +3 more
doaj   +1 more source

Atomization Characteristics of Special-Design Pneumatic Two-Fluid Nozzles for Helicopter Main Reducers: A Numerical and Experimental Investigation

open access: yesAerospace, 2022
Oil mist lubrication can be utilized as an emergency lubrication system in the main reducer of a helicopter. A special-design pneumatic two-fluid nozzle is the crucial system component for atomizing lubricant oil, so exploring the atomization ...
He Liu, Huiyun Cheng, Yu Dai, Xiang Zhu
doaj   +1 more source

Simulation and Experimental Investigation on Porous Gas Bearings for Linear Compressor

open access: yesZhileng xuebao, 2021
The active gas consumption technology of a gas bearing is adopted to realize oil-free lubrication and non-contact operation of a linear compressor to ensure the reliability of the compressor.
Zou Huiming   +4 more
doaj  

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