Results 21 to 30 of about 944,210 (290)

A Methodology for Analyzing Radial Ball Bearing Vibrations [PDF]

open access: yesTransactions of FAMENA, 2020
This paper presents the development of a methodology for calculating radial ball bearing vibrations. First, analytical and numerical models were developed and then, the obtained results were experimentally verified. In the experiment, a test rig for a dynamic testing of bearings subjected to an external load was used.
Soldat, Nataša   +3 more
openaire   +3 more sources

Radial-Artery or Saphenous-Vein Grafts in Coronary-Artery Bypass Surgery [PDF]

open access: yes, 2018
BACKGROUND: The use of radial-artery grafts for coronary-artery bypass grafting (CABG) may result in better postoperative outcomes than the use of saphenous-vein grafts.
Benedetto, Umberto   +7 more
core   +1 more source

Numerical Analysis of a Journal Bearing with Chemical Roughness [PDF]

open access: yes, 2012
In this paper, performances of an oil-lubricated journal bearing are investigated with special attention paid to slip occurrence. The chemical roughness at which slip occurs is introduced.
M, Muchammad   +3 more
core   +1 more source

Radial magnetic bearings: An overview

open access: yesResults in Physics, 2017
Radial magnetic bearings (RMBs) are one of the most commonly used magnetic bearings. They are used widely in the field of ultra-high speed and ultra-precise numerical control machine tools, bearingless motors, high speed flywheels, artificial heart pumps, and molecular pumps, and they are being strengthened and extended in various important areas.
Weiyu Zhang, Huangqiu Zhu
openaire   +2 more sources

On the dissipation layer of radial bearings [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
The dissipation boundary layer of certain radial bearings is identified. It is shown that, under certain conditions, the temperature outside this layer is constant.
R. O. Ayeni, S. S. Okoya, C. J. Agorzie
openaire   +3 more sources

The Vibrations of Radial Ball Bearings [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science, 1985
This paper presents a theoretical analysis of the vibration response of a rotating rigid shaft supported by two radial deep-groove lubricated ball bearings. The bearings and their oil films are approximated to a set of non-linear elastic springs and dampers rotating relative to the shaft when it is subjected to a rotating unbalance or inner race ...
H Rahnejat, R Gohar
openaire   +1 more source

Increasing the wear resistance of a radial bearing with a non-standard support profile and polymer coating on the shaft surface taking into account the pressure-viscosity ratio

open access: yesFrontier Materials & Technologies, 2022
The paper covers the development and analysis of a model of the true viscous lubricant movement in the working gap of a radial sliding bearing with a non-standard support profile having a fluoroplastic composite polymer coating with a groove on the shaft
Khaidar N. Abdulrakhman   +3 more
doaj   +1 more source

A Simplified Mathematical Model for the Analysis of Varying Compliance Vibrations of a Rolling Bearing

open access: yesApplied Sciences, 2020
In this paper, a simplified approach in the analysis of the varying compliance vibrations of a rolling bearing is presented. This approach analyses the generation of vibrations in relation to two boundary positions of the inner ring support on an even ...
Radoslav Tomović
doaj   +1 more source

Studies on wear resistance of the radial bearing design taking into account rheological properties of micropolar lubricant

open access: yesОмский научный вестник, 2023
The article is devoted to the development and analysis of a model of the motion of a micropolar lubricant in the working gap of a radial plain bearing with a fluoroplastic-containing antifriction composite polymer coating and with a groove on the ...
M. A. Mukutadze   +4 more
doaj   +1 more source

Acoustic Emissions and monitoring bearing health [PDF]

open access: yes, 2003
Acoustic emission (AE) was originally developed for non-destructive testing of static structures. however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David
core   +1 more source

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