Influence of Wear Debris on Rolling Contact Fatigue

2009 ◽  
pp. 255-255-20 ◽  
Author(s):  
RS Sayles ◽  
PB Macpherson
Keyword(s):  
Wear Debris ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact

Fourier Transform Infrared Spectroscopy for Wear Debris Adhesion on PEEK Bearing Surface

2013 ◽  
Vol 307 ◽  
pp. 372-376 ◽  
Author(s):  
Koshiro Mizobe ◽  
Masahiro Takamiya ◽  
Takashi Honda ◽  
Hitonobu Koike ◽  
Edson Costa Santos ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Wear Debris ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Fourier Transform Infrared ◽  
Rolling Contact ◽  
Materials Used ◽  
The Fourier Transform

Polyetheretherketone (PEEK), a tough semi-crystalline thermoplastic polymer with excellent mechanical properties and polytetrafluoroethylene (PTFE), valued for its low friction coefficient are popular materials used for the production of bearings. In this work, rolling contact fatigue (RCF) tests were performed in order to investigate wear on bearing surfaces by using the Fourier Transform Infrared Spectroscopy (FT-IR). It is reported that PEEK’s specific peak at 1243cm-1was shifted and PEEK’s polymer bearing crystalline content level on wear surface remained unchanged by contact stress or wear debris adhesion.

Health indicator metrics applicable to inductive wear debris sensors

2016 ◽  
Vol 231 (5) ◽  
pp. 583-593 ◽  
Author(s):  
Andrew Becker
Keyword(s):  
Wear Debris ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Sensor Data ◽  
False Alarms ◽  
Health Indicator ◽  
Detection Range ◽  
Ideal System ◽  
Failure Event

The Inductive Wear Debris Sensor is a relatively new invention that is increasingly being used for the detection of incipient machinery damage or failures by sensing metallic debris in lubrication systems. This type of sensor is typically used in-line and has a superior particle size detection range compared to traditional techniques such as the ubiquitous spectrometric oil analysis. There is, however, very little in the literature regarding the application and interpretation of data arising from this type of sensor. Unlike other condition monitoring sensors, no data will be generated by an Inductive Wear Debris Sensor in an ideal system; however, in real applications it is necessary to discriminate between occasional particles unrelated to a failure and incipient failure particles. Inductive Wear Debris Sensor data could be misinterpreted if a simple cumulative count limit was applied to the data. A short-term rate of particle generation is sometimes used as an alternative; however, it too can be misleading with short succession particles producing high instantaneous rates possibly causing false alarms. The purpose of this work was to develop a robust metric (or group of metrics) that when applied to Inductive Wear Debris Sensor data would reliably identify a failure event and exclude non-failure related particles. The Health Indicator described herein consists of three subordinate Condition Indices that collectively are shown to reliably detect the onset of rolling contact fatigue. The metrics have been applied to bearing test rig data (seeded fault) and data obtained from a non-seeded fault test of a complex helicopter gearbox.

Analysis of wear debris in rolling contact fatigue cracks of pearlitic railway wheels

Wear ◽  
2014 ◽  
Vol 314 (1-2) ◽  
pp. 51-56 ◽  
Author(s):  
K. Cvetkovski ◽  
J. Ahlström ◽  
M. Norell ◽  
C. Persson
Keyword(s):  
Wear Debris ◽  
Fatigue Cracks ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Railway Wheels

Rolling Contact Fatigue of Wheel and Rail

2012 ◽  
Vol 54 (5) ◽  
pp. 304-312
Author(s):  
Florian Dörner ◽  
Otto Kleiner ◽  
Christian Schindler ◽  
Peter Starke ◽  
Dietmar Eifler
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact

scholarly journals Hydrogen-assisted microcrack formation in bearing steels under rolling contact fatigue

2020 ◽  
Vol 134 ◽  
pp. 105485
Author(s):  
X.Z. Liang ◽  
G.-H. Zhao ◽  
J. Owens ◽  
P. Gong ◽  
W.M. Rainforth ◽  
...  
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Bearing Steels ◽  
Microcrack Formation
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