New approach for bearing life cycle control

Olabarrieta, Eneko; Konde, Egoitz; Guruceta, Enrique; Armendia, Mikel

doi:10.1016/j.promfg.2018.01.009

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…The bearing curvature ratio can be determined for the inner raceway as f i , Equation (1), the outer raceway as f o , Equation (2). The total curvature f t , Equation ( 3) is defined as a sum of curvature ratios determined for the inner and outer raceways:…”

Section: Raceway Curvature Ratiomentioning

confidence: 99%

“…The rolling-element bearings have found application in various branches of industry, as well as transportation [1]. Increasing demands for improved efficiency of equipment and mechanisms, while, at the same time, reducing energy consumption, require the rolling-element bearings to have a long service life, low running noise and low frictional moment [2]. This is particularly important in mechanisms produced using additive technologies [3][4].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Assessment of Influence of the Ball Bearing Raceway Curvature Ratio on the Level of Vibration

Zmarzły¹

2020

Komunikácie

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Raceway curvature ratio is a very important parameter, because its values influence the performance characteristics of rolling-element bearings, their durability and the level of generated vibrations. However, the level of generated vibrations is one of the most important operating parameters of the rolling-element bearings. Excessive vibrations generated by rolling-element bearings affect the operation of the whole mechanism. The article presents experimental studies aimed at evaluation of influence of the inner and outer raceway curvature ratios of 6304-type rolling-element bearings on generated vibrations values. The raceway curvature ratio was determined based on results of metrological measurements. For this purpose, the radii of the inner and outer raceways as well as the diameters of the balls were measured. Design and principle of operation of an innovative system for analysis of the raceway geometry of the rolling bearing rings was presented. The vibration analysis was carried out in three frequency ranges, i.e. low (50-300 Hz), medium (300-1,800 Hz) and high (1,800-10,000 Hz). Values of measured vibrations were expressed in Anderon units. The test results showed that increase in the raceway curvature ratio causes a moderate decrease in the value of the generated vibrations. The research results presented in this article will serve as a guidance to designers and manufacturers of the rolling-element bearings on how to modify the geometry of raceways and balls to obtain bearings that generate low vibration values. That is very important in car transportation.

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Section: Raceway Curvature Ratiomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Assessment of Influence of the Ball Bearing Raceway Curvature Ratio on the Level of Vibration

Zmarzły¹

2020

Komunikácie

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“…The monitored data are uploaded to the fleet server, where it is processed to obtain relevant indicators like friction, backlash, inversion peaks and maximum power in feed drives, and power consumption in spindles. If an accelerometer is installed in the spindle, vibration analysis can be performed, providing relevant indicators to estimate its condition [8]. The results of the tests are available in the cloud platform, KASEM ® , just after tests execution.…”

Section: Feed Drive and Spindle Auto-characterizationmentioning

confidence: 99%

Behaviours Indicators of Machine Tools

et al. 2019

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Knowledge of machine tool behaviour is a key element to improve production, quality and availability as behaviour indicators represent or give an idea of the real state of the machine. Indeed, real conditions can be used to update simulation models’ parameters, detect or anticipate quality fault on workpiece, and to estimate damage state of machine components such as axis and spindle. Behaviour indicators extraction is based on the analysis of specific and known moves or actions of the machine tools. Two kinds of approaches to build these indicators are discussed in this chapter.

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Rail vehicle axlebox roller bearing life and failure analysis based on the Hertz contact theory, finite element modeling, and field observations

Javanmardi,

Rezvani

2023

WJE

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Purpose Bearings are critical components used to support loads and facilitate motion for rotating and sliding parts of the machinery. Bearing malfunctions can cause catastrophic failures. Hence, failure analysis and endeavors to improve bearing performance are essential discussions for worldwide designers, manufacturers and end users of vital machinery. This study aims to investigate a type of roller bearing from the railway industry with premature failures. The task arises because locomotives’ maintenance and service life quality are vital to railway operations while providing transportation services for the nation. To assist in maintaining the designated locomotives, the present study scrutinizes the causes of failure of heavy-duty roller bearings from locomotive bogie axleboxes. Design/methodology/approach It is intended to inspect this bearing service life and statistically scrutinize its design parameters to reveal the failures’ shortcomings and origins. The significant measures include examinations of their failures’ primary and vital factors by comparing them with a real-life service history of 16 roller bearings of the same type. The bearings come from the axleboxes of a locomotive bogie with an axle load of 20 tons. The bearing loads are estimated using the EN13104 standard document and confirmed by the finite element method using ABAQUS engineering software. To validate the finite element modeling results, the bearings’ stress analysis is performed using the Hertzian contact theory that demonstrated perfect conformity. The said methods are also used to search for the areas susceptible to failures in these bearings. With the inclusion and exploitation of the bearing maintenance conditions and the logbook recordings of the locomotives for the past seven years, the critical cause for this type of bearing’s failures is surveyed and discussed. Findings With the inclusion and exploitation of the bearing maintenance conditions and the logbook recordings of the locomotives for the past seven years, the critical cause for this type of bearing’s failures is surveyed and discussed. As a crucial result, it is found that deprived maintenance and inadequate lubrication are the root causes of the loss of the selected bearings. Originality/value For the designated locomotives, the origins of the heavy-duty roller bearing failures and its design shortcomings are revealed by examining and comparing them with a real-life service history of many of the same types of bearings. The novelty of the research is in using the combination of the methods mentioned above and its decent outcome.

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New approach for bearing life cycle control

Cited by 3 publications

References 5 publications

Experimental Assessment of Influence of the Ball Bearing Raceway Curvature Ratio on the Level of Vibration

Experimental Assessment of Influence of the Ball Bearing Raceway Curvature Ratio on the Level of Vibration

Behaviours Indicators of Machine Tools

Rail vehicle axlebox roller bearing life and failure analysis based on the Hertz contact theory, finite element modeling, and field observations

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