- Burton, Dorking, Glasgow
- £ Competitive + Benefits
Some of the most exciting infrastructure projects in the UK over the coming years are in rail.
- Recruiter: Frazer-Nash Consultancy Ltd
- Porton Down, Salisbury
- Competitive salaries
Information is everything. Use it to serve your country and help keep us safe.
- Recruiter: Dstl
- Birmingham, West Midlands
Our transport technology team in Birmingham is currently growing a highly skilled and customer-focused team to...
- Recruiter: Mott MacDonald
- Letchworth Garden City, Hertfordshire
We are an innovative, robust and fast growing business, whose main focus is to deliver continues improvement to existing products and offer new sol..
- Recruiter: Helmet Integrated Systems / Gentex Corporation
- Cumbernauld, Glasgow
- Grade: 6/7* £26,537 - £37,768*
Work as part of a growing dynamic team on a wide range of technical projects with particular emphasis on experimental validation and testing
- Recruiter: University of Strathclyde
- Great Dunmow, Essex
This High Voltage Engineer will provide design leadership for high voltage cable assemblies up to one megavolt.
- Recruiter: Essex X-Ray & Medical Equipment
- Southampton, Hampshire
- £45,271 to £49,207 per annum
Responsible for technical oversight and project management of internally and externally funded innovation centre projects.
- Recruiter: National Oceanographic Centre
- Machynlleth, Wales or Stirling, Scotland
- Developing 22,924.00 - £27,222.25 / Competent £28,655.00 - £32,953.25
The prime purpose of the role is to specify, deliver and commission PLC and SCADA systems for hydroelectric systems within financial and time budgets
- Recruiter: Dulas Ltd
- Peterborough, Cambridgeshire
Mott MacDonald's highly successful Water and Environment Unit is recruiting an electrical engineer....
- Recruiter: Mott MacDonald
- Cambridge, Cambridgeshire
Mott MacDonald's highly successful water business continues to win and deliver a fantastic amount of work....
- Recruiter: Mott MacDonald
New weld inspection system to boost rail safety
Because of rail welds’ complex structure it is difficult to check their strength and integrity beneath the surface
An ultrasonic device that tests the strength of rail track welds could “radically improve safety standards” on Europe’s railways.
Rail safety teams across Europe inspect tracks for any cracks or defects that could cause problems and if a track needs fixing it is often welded on-site, but the track inspectors have few tools to check whether the resulting welds are strong enough.
But now Railect, an EU-funded project, has built a testing device that clamps on to the rail before ultrasonic transducers inspect the weld and defect detection software crunches the data to seek deep, internal volumetric defects that cannot be seen with the naked eye.
“The system does a full volumetric inspection of the rail weld in less than 15 minutes and is very easy to operate because most of the operations are automated,” says Railect’s project coordinator Tamara Colombier, from TWI, a Cambridge-based research organisation.
“Because it gives an accurate position of the size and location of any weld defects, it could also reduce the very high rejection rate given by the visual inspection.”
Although they fix flaws on the rails, the welds themselves can suffer shrinkage, hot tears, slag inclusions, failure to fuse, and porosity.
Weld joint failures account for 20 per cent of all rail failures, but because of the welds’ complex structure, geometry and thickness, it is difficult to check their strength and integrity of the volume beneath the surface.
And as most checks are made with the human eye, a large number of welds with surface cracks are rejected even though they might be deeper inside.
There are an estimated 11 million welds on the European rail network, with around a thousand new ones added daily, but without new tools the rise in rail speeds, denser rail traffic, and heavier freight train weights are all likely to create more rail breaks across the European network.
“Now that the high speed network is expanding within Europe, the frequency of the inspection and maintenance has to be increased,” says Colombier. “Having a reliable, advanced and innovative system of inspection such as the Railect system will contribute to the establishment of a safer European railway network.”
Backed by a €1.1m grant from the European Commission, Railect’s partners – five from Britain, plus one each from Poland, France and Lithuania – have patented the technologies, and are working to bring it to market.
Network Rail, the authority responsible for the United Kingdom's railway network, has already indicated it will buy 40 Railect units.
Colombier says that beyond the obvious benefits for safety, the technology will also reduce maintenance costs on Europe's rail network, costs associated with the high rejection rates and by boosting the overall weld quality, it will ensure a smoother ride on passenger trains.
“Railect could radically improve safety standards all over Europe,” Colombier says. “And that can only be good for Europe’s railways.”
"We visit Barcelona, one of the smartest cities in the world, to find out what makes it so special. What does it look like and what is the future?"
- HS2 to cost 'five times as much as TGV', study finds
- Turning sunlight into heat doubles solar cell efficiency
- Apple investigating electric vehicle charging stations
- Heart-monitoring tablet named best tech innovation for Africa
- X-ray laser reveals first of a kind images of exploding water droplets
- Nasa inflates Bigelow space station module