Design and Prototype of Wireless Robot for Condition Monitoring of Coal Conveyor Roller Bearings

2018 ◽  
pp. 89-97
Author(s):  
Vikesh P. Kumawat ◽  
Nikhil S. Divate ◽  
Sangeeta Bansode ◽  
Amit Kumar Patel ◽  
Kailas S. Jagtap
Keyword(s):  
Condition Monitoring ◽  
Roller Bearings ◽  
Wireless Robot ◽  
Conveyor Roller

The Effect of Wear Evolution on Vibration-based Fault Detection in Tapered Roller Bearings

2019 ◽  
Vol 9 (1) ◽  
pp. 18-23
Author(s):  
K Rabeyee ◽  
X Tang ◽  
F Gu ◽  
A D Ball
Keyword(s):  
Condition Monitoring ◽  
Rolling Element Bearings ◽  
Rolling Bearings ◽  
Roller Bearings ◽  
Fault Type ◽  
Rolling Element ◽  
Tapered Roller ◽  
Magnitude Variation ◽  
Tapered Roller Bearings ◽  
The Impact

Rolling element bearings (REBs) are typical tribological components used widely in rotating machines. Their failure could cause catastrophic damage. Therefore, condition monitoring of bearings has always had great appeal for researchers. Usually, the detection and diagnostics of incipient bearing faults are achieved by characterising the weak periodic impacts induced by the collision of defective bearing components. However, race wear evolution, which is inevitable in bearing applications, can affect the contact between bearing elements and races, thereby decreasing the impact magnitudes and impeding detection performance. In this paper, the effect of wear evolution on the condition monitoring of rolling bearings is firstly analysed based on internal clearance changes resulting from the wear effect. Then, an experimental study is ingeniously designed to simulate wear evolution and evaluate its influence on wellknown envelope signatures according to measured vibrations from widely used tapered roller bearings. The fault type is diagnosed in terms of two indices: the magnitude variation of characteristic frequencies and the deviation of such frequencies. The experimental results indicate a signature decrease with regard to wear evolution, suggesting that accurate severity diagnosis needs to take into account both the wear conditions of the bearing and the signature magnitudes.

scholarly journals Condition Monitoring for Roller Bearings of Wind Turbines Based on Health Evaluation under Variable Operating States

Energies ◽  
2017 ◽  
Vol 10 (10) ◽  
pp. 1564 ◽  
Author(s):  
Lei Fu ◽  
Yanding Wei ◽  
Sheng Fang ◽  
Xiaojun Zhou ◽  
Junqiang Lou
Keyword(s):  
Condition Monitoring ◽  
Wind Turbines ◽  
Health Evaluation ◽  
Roller Bearings

Condition monitoring of roller bearings

2020 ◽  
Author(s):  
Ravikumar Saranu
Keyword(s):  
Condition Monitoring ◽  
Roller Bearings

Bearing Defect Detection Using On-Board Accelerometer Measurements

Joint Rail ◽  
2002 ◽  
Author(s):  
John Donelson ◽  
Ronald L. Dicus
Keyword(s):  
Monitoring System ◽  
Condition Monitoring ◽  
Roller Bearing ◽  
Spectral Lines ◽  
Roller Bearings ◽  
Bearing Defects ◽  
Bearing Defect ◽  
Freight Car ◽  
Condition Monitoring System ◽  
Vibration Signatures

Vibration signatures of defective roller bearings on railroad freight cars were analyzed in an effort to develop an algorithm for detecting bearing defects. The effort is part of a project to develop an on-board condition monitoring system for freight trains. The Office of Research and Development of the Federal Railroad Administration (FRA) is sponsoring the project. The measurements were made at the Transportation Technology Center (TTC) in Pueblo, CO on July 26 – 29, 1999 during the Phase III Field Test of the Improved Wayside Freight Car Roller Bearing Inspection Research Program sponsored by FRA and the Association of American Railroads (AAR). Wheel sets with specific roller bearing defects were installed on a test train consisting of 8 freight cars designed to simulate revenue service. The consist also contained non-defective roller bearings. Accelerometers were installed on the inboard side of the bearing adapters to measure the vibration signatures during the test. Signatures of both defective and non-defective bearings were recorded. The data were recorded on Sony Digital Audio Tape (DAT) Recorders sampling at a rate of 48 K samples per second. We used both ordinary and envelope spectral analysis to analyze the data in an effort to detect features that could be related to known defects. The spectra of non-defective bearings show no remarkable features at bearing defect frequencies. In general, the ordinary spectra of defective bearings do not exhibit remarkable features at the bearing defect frequencies. In contrast, the envelope spectra of defective bearings contain a number of highly resolved spectral lines at these frequencies. In several cases the spectral lines could be related to specific bearing defects. Based on the analysis performed to date, the envelope spectrum technique provides a promising method for detecting defects in freight car roller bearings using an on-board condition monitoring system.

Advanced condition monitoring of tapered roller bearings, Part 1

2009 ◽  
Vol 42 (11-12) ◽  
pp. 1846-1856 ◽  
Author(s):  
M. Craig ◽  
T.J. Harvey ◽  
R.J.K. Wood ◽  
K. Masuda ◽  
M. Kawabata ◽  
...  
Keyword(s):  
Condition Monitoring ◽  
Roller Bearings ◽  
Tapered Roller ◽  
Tapered Roller Bearings

Diagnostics Problems and Decisions of Low Rotation Speed Rotors with Antifriction Bearings

2013 ◽  
Vol 199 ◽  
pp. 15-20
Author(s):  
Vytautas Barzdaitis ◽  
Pranas Mažeika ◽  
Vytautas V. Barzdaitis
Keyword(s):  
Condition Monitoring ◽  
Measurement Method ◽  
Evaluation Method ◽  
Rotation Speed ◽  
Mechanical Vibration ◽  
Technical Condition ◽  
Roller Bearings ◽  
Vibration Parameters ◽  
Parameters Measurement

The essence of the paper was to design technical condition monitoring and failure diagnostic evaluation method of low rotation speed rotors with self-aligning antifriction roller bearings. The technical condition of bearings and failures of the cylindrical rollers and cylindrical wheels surfaces were tested in situ using mechanical vibration parameters measurement method. The theoretical part of the paper was constrained to the modeling of two cylinders in the case of different damages levels of the spherical roller bearings.

scholarly journals Algorithm of Strength Calculation of Drive Elements of a Roller Conveyor

2021 ◽  
Vol 285 ◽  
pp. 07040
Author(s):  
Mariya Androsenko ◽  
Nail Tyuteryakov ◽  
Ekaterina Kulikova ◽  
Lyubov Deryabina ◽  
Ivan Krayniy
Keyword(s):  
Electric Motor ◽  
Static Strength ◽  
Strength Calculation ◽  
Roller Conveyor ◽  
Roller Bearings ◽  
Torsion Strength ◽  
First Moment ◽  
Conveyor Roller

The paper shows an algorithm for determining the load on the electric motor of run-out conveyor starting from determination of the first moment of no load operation during slab conveying, slipping torque of the rollers along the surface of the conveyed billet and ending with the choice of the electric motor. It also covers an algorithm for strength calculations of the run-out conveyor roller, which includes the calculation of the moments and forces acting on the conveyor roller and its supports, the calculation of static strength and torsion strength, calculation of roller deflection of the conveyor rollers as well as the selection and verification calculation of conveyor roller bearings.

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