Experimental Determination of Damage to Bearing Raceways in Rolling Rotational Connections

Zupan, Samo; Kunc, Robert; Prebil, Ivan

doi:10.1111/j.1747-1567.2006.00019.x

Cited by 15 publications

(7 citation statements)

References 7 publications

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“…(2) is derived from the theory of commonly used bearing, because a slewing bearing usually appears as a thrust type bearing that primarily endures thrust and turnover loads. Although the actual service life of a slewing bearing is usually two or more times longer than the L 10 life for the crack propagation [8][9][10], L 10 life still has great significance in the evaluation of the service life of a slewing bearing.…”

Section: Introductionmentioning

confidence: 99%

Effect of raceway geometry parameters on the carrying capability and the service life of a four-point-contact slewing bearing

et al. 2010

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The carrying capability and the service life of a four-point-contact slewing bearing are influenced significantly by its raceway geometry parameters. In this paper, the carrying capability is characterized by the maximal contact stress in the paper. The usual industry practice is to specify the service life as the L 10 life. The geometry parameters, cross section clearance, ratio of curvatures, rolling ball diameter, and initial contact angle, are also considered. The sensitivity of each parameter influencing the carrying capability and the service life is discussed as well. The results show an interesting phenomenon, indicating that the maximal contact load and the maximal stress do not always have the same varying trend when discussed parameters vary. The developed design can be utilized as a reference for an optimal slewing bearing design. If a slewing bearing of high static carrying capability is required, it can be designed with large ratio of curvatures and rolling ball diameter. In terms of service life, the cross section clearance and the initial contact load should also be considered.

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Section: Introductionmentioning

confidence: 99%

Effect of raceway geometry parameters on the carrying capability and the service life of a four-point-contact slewing bearing

et al. 2010

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“…At the same time, it is easy to install and save space for testing. ROTHE ERDE [33] has developed a slewing bearing test bench specifically for wind power slewing bearings, which can detect the comprehensive performance of the bearing raceway. SKF [34] has established a bearing test bench in Germany, which can test the friction performance and life of 3 MW wind turbine bearings.…”

Section: Introductionmentioning

confidence: 99%

Research on Real Working Condition Simulation and Performance Test of Wind Power Main Bearing Based on Test Bench

Zhai

Qin

Yang

2021

Mathematical Problems in Engineering

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As a renewable energy source, wind energy has received more and more attention, and the wind power industry has also been advocated and developed by countries all over the world. In the production and use of wind turbines, the design and manufacturing technology of wind turbine bearings is very important. In order to ensure the reliable operation of the wind power main bearing after installation and realize the longest life of it, this paper designs a bearing test bench that can test the performance of the wind power main bearing. It can analyze the temperature, displacement, load, and moment of the key parts of the 5 MW wind power main shaft bearing. The solid modeling of the experimental platform was carried out using the 3D modeling software SolidWorks. Hydraulic loading system and test monitoring system are designed to realize the drive and control of the test bench. Through the established mathematical model, the central load of the hub is converted into the axial cylinder load and the radial cylinder load of the test bench to simulate the actual working conditions of the tested bearing. The test results show that the test bench meets various loading requirements and can reliably complete the task of testing wind power main bearings.

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“…6–8 For example, the REBAM system developed by the American Bently company has been applied to the monitoring and diagnostics of rotor vibration. 9 The COMPASS system developed by B&K in Denmark has been applied to equipment malfunction segregation and analytical research. 10…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of ball-bearing faults using support vector machine based on the artificial fish-swarm algorithm

Lin

Chu

Wang

et al. 2019

Journal of Low Frequency Noise, Vibration and Active Control

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Ball bearings are important parts of all modern rotating machines. Their function is to reduce friction, support rotating shafts and spindles, and bear loads. Bearing damage can result in abnormal vibrations, cause machine malfunction, and even be dangerous. In this study, analysis of four different ball-bearing conditions was carried out: normal bearings and bearings with inner ring, rolling body, and outer ring malfunction. This was based on electromechanical vibration signals produced on a fault diagnosis simulation platform. The objective was to use a series of signal processing analytical methods to build a set of identification models used to forecast malfunction. Wavelet packet transform technology was first used to process the vibration signal. The signals were pre-processed and analyzed before eigenvalue calculation was done to analyze the signal changes which allowed determination of the nature of the bearing malfunction to be made. The extracted eigenvalues and ball-bearing status categories were input to the support vector machine for model training and testing. Finally, the constructed model parameters were integrated with particle swarm optimization, and the artificial fish-swarm algorithm was used to obtain the optimal parameters for the classifier, and this improved the accuracy of malfunction classification.

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Experimental Determination of Damage to Bearing Raceways in Rolling Rotational Connections

Cited by 15 publications

References 7 publications

Effect of raceway geometry parameters on the carrying capability and the service life of a four-point-contact slewing bearing

Effect of raceway geometry parameters on the carrying capability and the service life of a four-point-contact slewing bearing

Research on Real Working Condition Simulation and Performance Test of Wind Power Main Bearing Based on Test Bench

Diagnosis of ball-bearing faults using support vector machine based on the artificial fish-swarm algorithm

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