Understanding and prevention of false brinelling failure mode in rolling element bearing applications

Lead Research Organisation: Imperial College London
Department Name: Dept of Mechanical Engineering

Abstract

False brinelling is a type of surface damage that most commonly occurs in non-conformal, nominally stationary contacts that are subjected to externally generated vibration. All machine elements that rely on non-conformal, rolling-sliding contacts in their operation can suffer from false brinelling, but it is most commonly observed in rolling element bearings, especially in stand-by equipment stored near running machines and in the transport of automotive vehicles by rail or sea. False brinelling is a specific type of a more general contact damage mechanism of fretting, often referred to as fretting corrosion. The underlying mechanisms causing fretting and false brinelling are thought to be similar, but false brinelling in rolling bearings has an added complication that the oscillatory motion is not pure sliding but also involves rolling of rolling elements on bearing raceways. The aim of the proposed research is firstly, to gain a better understanding of the factors that drive the onset and progression of false-brinelling damage and secondly, to provide potential preventative measures, be it through the improvements in bearing design or lubricant formulation.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509486/1 01/10/2016 31/03/2022
1883385 Studentship EP/N509486/1 01/10/2016 30/06/2020 Rachel Januszewski
 
Description Diverse@Imperial Research Showcase 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach Regional
Primary Audience Schools
Results and Impact Around 100 school students visited from various schools across London, varying from years 7 - 13, but majority from years 10 and 11. Interactive demonstrations were run to show them about our research and where it can be applied in the real world. There students enjoyed learning and feedback says that the event may have inspired some of them to consider STEM subjects.
Year(s) Of Engagement Activity 2018
 
Description Imperial College Science Festival 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach Regional
Primary Audience Public/other audiences
Results and Impact Science Festival for the general public. Intended to engage about science, in our case using practical demonstrations to teach children and adults about the reseach that happens in our department. Many people said that they learned a lot by talking to us.
Year(s) Of Engagement Activity 2017
URL https://www.imperial.ac.uk/media/Imperial-Festival-2017-Evaluation-Highlights.pdf