Results 21 to 30 of about 309,342 (302)

Thermal EHL analysis of the inner ring rib and roller end in tapered roller bearings with the Carreau model

open access: yesFrontiers in Manufacturing Technology, 2023
The roller end/rib contact of tapered roller bearings significantly affects lubricating condition and power loss. To improve the lubrication performance of the inner ring rib and the large end of the roller in tapered roller bearings used in railway ...
Xiaoling Liu   +3 more
doaj   +1 more source

Research on the fluid film lubrication between the piston-cylinder interface

open access: yesAIP Advances, 2018
The fluid film between piston and cylinder works simultaneously as bearing and lubricating functions, its thickness determines the lubrication efficiency and performance of an axial piston pump.
Dongyun Wang   +4 more
doaj   +1 more source

Analysis of Factors Affecting Lubrication Performance of Crankshaft Main Bearing Considering Thermal Effect

open access: yesJixie chuandong, 2022
In view of the factors affecting the lubrication performance of crankshaft main bearing, an elastohydrodynamic lubrication model of crankshaft main bearing, considering thermal effect, is established. The model takes the external load of bearing, bearing
Shao Kang, Wang Guangdong, Bi Fengrong
doaj  

Meshing efficiency for sinusoidal movable tooth drive

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
Sine movable tooth drive has the smallest radial size. Working efficiency is one of the important factors of the performance evaluation of the drive. Here, based on analyzing entrainment speed and forces of sine movable tooth drive, the equations of the ...
Lizhong XU, Meijun MEN
doaj   +1 more source

Elastohydrodynamic Lubrication of Compliant Circular Contacts near Glass-Transition Temperature

open access: yesLubricants, 2022
Lubrication of polymer materials nowadays represents a subject of interest in many engineering applications, such as bearings or gears, to utilize them in the areas where conventional metal materials have so far dominated. However, material properties of
Jiri Krupka   +3 more
doaj   +1 more source

Investigation of Lubricant Oil Film Thickness on Workpiece under Minimum Quantity Lubrication Milling Process

open access: yesTribology Online, 2023
Minimum Quantity Lubrication (MQL) technology has drawn attention as an effective lubrication technique despite its small usage of lubricants during the machining process. The technology has undeniably minimized the manufacturing cost as well as the adverse impacts towards the environment and health of operators.
Nurrina Rosli   +3 more
openaire   +2 more sources

Influence of Surface Roughness on Seal Property of Aircraft Actuator

open access: yesHangkong gongcheng jinzhan, 2020
Aviation hydraulic actuator is widely used in many parts of an aircraft,such as aircraft wing, landing gear, hatch door. The typical seal form is reciprocating seal, and the failure of seal will seriously affect the execution of flight mission and even ...
YAN Xiaoliang   +3 more
doaj   +1 more source

Analysis of Cycloidal Pinwheel Drive Lubrication Characteristic based on Fractal Rough Surface

open access: yesJixie chuandong, 2020
Combining the surface topography model of pin tooth and cycloid tooth constructed by fractal theory,and the proposed film thickness formula of line contact lubricated with grease based on the Herschel-Bulkley model,the minimum film thickness in the ...
Fushuai Zhang   +3 more
doaj  

High-Speed Digital Photography of Vapor Cavitation in a Narrow Gap Flow

open access: yesFluids, 2023
Digital photography of cavitation in narrow gap flows, e.g., lubrication films in journal bearings or squeeze film dampers, demands a high time-resolution and a solution to approaching the particular spatial restrictions.
Peter Reinke   +5 more
doaj   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer   +3 more
wiley   +1 more source

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