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KRESTOS has been involved in one FP7 Industrial Collaborative Research Project supported by the European Commission and one TSB project supported by the UK government.



Interoperable monitoring, diagnosis and maintenance strategies for axle bearings (Acronym: MAXBE – Grant agreement number: SCP2-GA-2012-314408) – – STATUS: ON-GOING

MAXBE is a collaborative project for Rail system interoperability (regulatory and non-legislative interoperability based on technological innovations). The axle bearing damage process has safety and economic implications on the exploitation of railways systems, as proved by the selection of this topic for inclusion in the present call for research proposals of the FP7 of the EU. Axle bearing damage has been the object of intense attention by railway operators and transportation authorities, leading to a variety of approaches and systems currently in place to deal with the problem. However in Europe there is some lack of standardisation which justifies R&D work on condition monitoring and early diagnosis of axle bearings by technology integration. Moreover the current European documents do not present any guidelines for the maintenance management of the rolling stocks with regards to axle bearings, which make the association of monitoring, diagnosis and maintenance an interesting approach. The consortium for the MAXBE project comprises 17 partners (industry, leading universities, end-users and a SME) from 8 member states, representing operators, axle bearing manufactures, key players in the railway community and experts in the field of monitoring, maintenance and rolling stock. Within the project KRESTOS is leading the development of the acoustic emission module.




An integrated wayside condition monitoring system for axle bearings (Project name: COMORAIL) – – STATUS: COMPLETED

The reliability and safety of axle bearings in passenger and freight rolling stock has always been of concern to the rail industry. Wayside condition monitoring of in-service axle bearings has been based primarily on hotbox detectors which are usually spaced at relatively great distance from each other. Hotbox detectors are able to detect a faulty axle bearing once it has already reached critical condition and is thus overheating. However, faulty axle bearings can seize at any time in between and result in a derailment. The consortium of the COMORAIL project developed an innovative and cost-effective wayside condition monitoring system based on the integration of acoustic emission and vibration sensors capable of identifying axle bearing faults at a much earlier stage than currently possible with existing technology. The consortium validated the developed system in the field with the help of VTG at the Long Marston rail track. KRESTOS Limited led the development of the acoustic emission module of the COMORAIL system.




KRESTOS has been involved as a subcontractor in two FP7 projects:

1.Development and Demonstration of a Novel Integrated Condition Monitoring System for Wind Turbines (ACRONYM: NIMO – Grant Agreement: 239462) - – STATUS: COMPLETED

The NIMO project sought to reduce the number of catastrophic failures and minimise the need for corrective maintenance by developing and successfully implementing an integrated condition monitoring system for the continuous evaluation of wind turbines. NIMO advanced existing state-of-the-art condition monitoring technology used in wind turbines by delivering an advanced system which is able to reliably evaluate the condition of critical structural components, rotating parts and braking mechanisms. The schematic below shows the overall principle of the NIMO system developed and demonstrated on industrial wind turbines during the project.



2.Development of Novel Inspection Systems for Railway Wheelsets (Acronym: SAFERAIL – Grant Agreement Number: 218674) – – STATUS: COMPLETED

SAFERAIL consisted of an 11 partner consortium seeking to minimise wheelset failures by developing and successfully implementing novel wayside systems for the inspection of wheels and axles of moving trains. In addition the consortium implemented ultrasonic and electromagnetic manual inspection systems for faster and more reliable inspection of the quality of new and old wheel sets during their production and maintenance. The key results of the project were covered on a FUTURIS documentary aired on EURONEWS (