Results 1 to 10 of about 81,782 (162)

A Study on the Modeling Method of Cage Slip and Its Effects on the Vibration Response of Rolling-Element Bearing

open access: yesEnergies, 2022
Rolling-element bearings play vital roles in the dynamic vibration performance of the whole machinery. Hence, accurate modeling and assessment of the rolling-element bearing are beneficial for the well understanding of the vibration response of rolling ...
Ya Luo   +5 more
doaj   +3 more sources

Planetary Gearbox Dynamic Modeling Considering Bearing Clearance and Sun Gear Tooth Crack

open access: yesSensors, 2021
Planetary gearbox systems are critical mechanical components in heavy machinery such as wind turbines. They may suffer from various failure modes, due to the harsh working environment.
Xianhua Chen   +3 more
doaj   +3 more sources

A Novel Physics-Informed Hybrid Modeling Method for Dynamic Vibration Response Simulation of Rotor–Bearing System

open access: yesActuators, 2023
For rotor–bearing systems, their dynamic vibration models must be built to simulate the vibration responses that affect the safe and reliable operation of rotating machinery under different operating conditions.
Mengting Zhu   +3 more
doaj   +3 more sources

Prediction of oil-bearing single sandbody by 3D geological modeling combined with seismic inversion

open access: yesPetroleum Exploration and Development, 2009
The prediction of geometry and distribution for oil-bearing single sandbody is an important task in fine reservoir characterization. According to the geologic feature, quality of seismic data, and the study purposes of G Oilfield in Bohai Bay Basin ...
Wu Jian, Li Fanhua
doaj   +3 more sources

Modeling of the race roundness and roughness for ball bearing based on Fourier series and fractal theory

open access: yesResults in Engineering
In the modeling and simulation of bearing dynamics, the roundness profile and surface roughness of the raceway is critical for ensuring the precision of the simulation results.
Long He   +4 more
doaj   +3 more sources

Bearing signal models and their effect on bearing diagnostics

open access: yesMechanical Systems and Signal Processing, 2022
Signal models of rolling-element bearings have been a fundamental tool for the development and justification of new bearing signal processing techniques. A cyclostationary model proposed twenty years ago is still the most common reference for physically-justified bearing diagnostics.
Borghesani, P   +5 more
openaire   +2 more sources

Modelling and Simulation of Aerostatic Thrust Bearings [PDF]

open access: yesIEEE Access, 2020
This paper demonstrates the modelling and simulation comparison of the static characteristics of a porous, orifice, and multiple type aerostatic thrust bearings on the basis of load-carrying capacity(LCC) and stiffness. The equations Navier-Stokes (N-S) are used to solve the internal distribution of pressure in computational fluid dynamics(CFD ...
Muhammad Punhal Sahto   +5 more
openaire   +3 more sources

Investigation of the influence of turbulence to tribological performance on smooth and multistep journal bearing with hydrodynamics simulation

open access: yesFrontiers in Mechanical Engineering, 2022
A bearing is an element that maintains the relative motion between two components in industrial machines, while a journal bearing is often used to maintain the shaft constantly rotating on its axis. Generally, an increase in journal bearings’ performance
M. Muchammad   +6 more
doaj   +1 more source

complete modelling of a rotor-bearing-housing system [PDF]

open access: yesمجله مدل سازی در مهندسی, 2016
Due to the inaccessibility to rotating parts of the rotor the only way to flaw detection is measuring vibrations on the fixed portions such as surfaces of housing the bearings.
Mansour Rafeeyan, Rouhallah Nourouzi
doaj   +1 more source

Effect of the Lubrication Parameters on the Ceramic Ball Bearing Vibration in Starved Conditions

open access: yesApplied Sciences, 2020
The thickness of the oil film in ceramic ball bearings varies greatly at starved lubrication conditions, thus leading to non-uniform contact between the balls and raceways in the circumference.
Ke Zhang   +5 more
doaj   +1 more source

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