ROLLING STOCK
New monitoring system improves Southeastern’s maintenance planning
Southeastern is transforming its maintenance planning after implementing a new data gathering system that measures bearing degradation. David Stevenson reports.
A
new vibration energy harvesting powered system deployed to measure bearing degradation on Southeastern trains is already improving maintenance planning and cutting costs.
It was initially a limited trial, but the technology has now been fi tted to all 148 Electrostars in Southeastern’s mainline fl eet in Kent and East Sussex. The system, developed by Perpetuum, works by relaying information generated from vibration sensor nodes fi tted to the wheel axle via a 3G-enabled data hub, into a cloud data base. The data is then processed via
algorithms and
displayed via a dashboard monitored by the production team.
The information helps managers and engineers to better plan bearing replacement according to wear levels.
Mick Hurley, mainline support manager at Southeastern, said: “We’ve never had a remote condition monitoring system that provides information on mechanical performance of bearings before so this is a real step forward.
“We’re delighted with the system and have been working closely with Perpetuum to make sure that it is developed in line with our needs.”
The two companies are now developing the system for use in monitoring wheel health. At present, train wheels are examined every
15,000 miles and all wheels are checked for faults. The team is developing the system to identify faults via live data so that trains can be maintained according to the work required rather than on the basis of a rolling programme of checks.
In our June/July 2012 issue, RTM reported on another Southeastern remote monitoring system for its Networker fl eet, which improved performance and cut maintenance costs. The TOC’s engineering director Wayne Jenner called that system “the most sophisticated in the UK, by a mile”.
A successful wheel lathe installation
Cairn Cross Civil Engineering Ltd’s Craig Bagnall describes the safe, effective and early completion of the new Craigentinny wheel lathe.
C airn
Cross Civil Engineering Ltd was appointed by Network Rail to
replace the existing life-expired wheel lathe at Craigentinny, Edinburgh, with a new Hegenscheidt CNC Wheel Lathe.
The scheme involved the removal of the old lathe, demolition of the concrete foundations and signifi cant re-modelling of the structure within the existing building. The new lathe pit is 8.3 metres long, 7 metres wide and 4 metres deep. A new section of concrete fl oor was required within the building, spanning 50 metres.
The scheme was handed back to the operator (East Coast) six weeks ahead of schedule.
The new Hegenscheidt Wheel Lathe is designed to lift, measure and machine a wheelset. It covers the re-profi ling and partial re-profi ling of wheelsets; machining of the inner and outer wheel face; re-profi ling of individual wheels; and machining of axle and/or wheel-mounted brake discs.
The access to the site was challenging given the existing infrastructure, but with the cooperation of both the client and the stakeholders we were able to safely and effectively deliver this
complex scheme with no accidents and ahead of programme.
Cairn Cross Civil Engineering Ltd has developed a portfolio of successful new wheel lathe installations across the country. It is testament to the obvious knowledge, experience and innovation of the project team that this enhancement to the rail infrastructure was successfully delivered.
FOR MORE INFORMATION
T: 0113 284 2415 E:
info@cairncross.uk.com W:
www.cairncross.uk.com
rail technology magazine Apr/May 14 | 65
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