Advanced condition monitoring of tapered roller bearings, Part 1

Craig, M.; Harvey, Terry J.; Wood, R.J.K.; Masuda, K.; Kawabata, Masahiko; Powrie, H.E.G.

doi:10.1016/j.triboint.2009.04.033

Cited by 45 publications

(39 citation statements)

References 33 publications

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“…A major drawback is that these inductive sensors have a high detection threshold, limiting the method to studying particles of size 100 µm and larger. In a more recent study, Craig et al found that particle counters gave early detection of bearing wear [18]. In this case, while the on-line inductive particle counter only registered a single particle, an off-line, light-blocking particle counter showed significant increase in the 5-15 µm range.…”

Section: Introductionmentioning

confidence: 92%

Comparison of optical and magnetic particle detection systems for detection of pitting damage in low speed hydraulic motors

Sjödin

2013

Linköping Electronic Conference Proceedings

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In this study two systems for detection of pitting damage in low speed hydraulic motors were compared. These systems were based on an optical particle detector and a magnetic plug respectively. The purpose of the comparison was to determine the relative effectiveness of two methods for detecting pitting damage in a low speed hydraulic motor. In order to do this extensive testing was conducted in Bosch Rexroth Mellansel AB laboratory in Mellansel, Sweden. In the course of the project two post-processing algorithms were developed to enable automatic triggering of alarms based on measurement values from the optical sensor. The optical sensor showed earlier indication of damage than the magnetic plug and the algorithms produced automatic alarms, but there was also a higher false alarm rate when using the optical sensor compared to the magnetic plug.

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Section: Introductionmentioning

confidence: 92%

Comparison of optical and magnetic particle detection systems for detection of pitting damage in low speed hydraulic motors

Sjödin

2013

Linköping Electronic Conference Proceedings

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“…ES sensors have also shown to be able to detect bearing failures in advance of vibration monitoring techniques [27][28][29] . Hence, the ES sensing technique might have the potential to detect WEC failures under electrical load influences when a charging and discharging phenomenon occurs in rolling element bearings.…”

Section: Introductionmentioning

confidence: 99%

A study of white etching crack bearing failure detection using electrostatic sensing in wind turbine gearboxes

Esmaeili¹,

Harvey²,

White³

et al. 2018

int j cond monitor

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White etching cracks (WECs) have been found to form in rolling element bearings as early as 6-24 months into operation, especially in large wind turbine gearboxes [1] . [2,3] . [4] . [3] . To investigate the feasibility of WEC detection using the electrostatic (ES) sensing technique, an ES wear site sensor was installed on a bearing test-rig where WECs had been created under the influence of electrical load. The ES responses were compared with those from an acoustic emission (AE) sensor that had been shown to detect WEC failures in a previous study The physical findings related to WEC failures in the bearings and basic analysis of the sensor signals have been reported in a parallel paper by Zuercher et al

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“…Different sensing techniques have been reported to monitor on-line bearing wear, including vibration and acoustic measurements, electrostatic wear charge and analysis of debris size [4][5][6]. Infrared thermography was cited as a complementary method or for particular applications.…”

Section: Introductionmentioning

confidence: 99%

“…Different origins are cited for the temperature rise during the wear process, mainly the thermal process involved during fatigue plastic deformation of metal and the increase of friction. High temperatures were reported during bearing wear, when fatigue crack propagation and spallation process were involved [6,12]. During a fatigue test at very high fatigue cycle regime, the temperature may grow locally and significantly before fracture [13].…”

Section: Introductionmentioning

confidence: 99%

“…Authors studying the service life of bearing reported temperature during and at the end of bearing live, whether using thermography or thermocouples [6,[15][16][17]. A study of machine tool spindle to obtain an assembly presenting a good stiffness at low speed and a limited temperature increase at high speed monitored the fatigue life of bearings [15].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Performance of Infrared Thermography for On-Line Condition Monitoring of Rotating Machines

Leemans¹,

Destain²,

Kilundu³

et al. 2011

ENG

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This study evaluated the possibility of infrared thermography to measure accurately the temperature of elements of a rotating device, within the scope of condition monitoring. The tested machine was a blower coupled to a 500 kW electric motor, that operated in multiples regimes. The thermograms were acquired by a fixed thermographic camera and were processed and recorded every 15 minutes. Because the normal temperature variations could easily mask a drift caused by a failure, a corrected temperature was computed using autorecursive models. It was shown that an efficient temperature correction should compensate for the variations of the process, and for the ambient temperatures variations, either daily or seasonal. The standard deviation of the corrected temperature was of a few tenth of degree, making possible the detection of a drift of less than one degree and the prediction of potential failure.

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Advanced condition monitoring of tapered roller bearings, Part 1

Cited by 45 publications

References 33 publications

Comparison of optical and magnetic particle detection systems for detection of pitting damage in low speed hydraulic motors

Comparison of optical and magnetic particle detection systems for detection of pitting damage in low speed hydraulic motors

A study of white etching crack bearing failure detection using electrostatic sensing in wind turbine gearboxes

Evaluation of the Performance of Infrared Thermography for On-Line Condition Monitoring of Rotating Machines

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