It is rocket science!

AMMay20Features - abb1
AMMay20Features - abb1

By incorporating ABB robots to test extreme high-temperature systems, Sensor Coating Systems (SCS) has added more cutting-edge technology to its sensing portfolio and enhanced future capabilities.

 

A cutting-edge testing system to help with the development of components for aero engines and other high-temperature systems is 30% faster, thanks to the help from a nimble ABB IRB 1200 robot. The developers predict that the new system could reduce the testing and development cycle from weeks to days.

London-based start-up, Sensor Coating Systems (SCS) successfully completed the Automated Robotic REadout SysTem (ARREST) project. During this project, an automated readout system for SCS’s thermal mapping technology has been developed. In this way, the company’s novel technique allows engineers to access temperature test data in a faster and more accurate way than previously possible.

SCS’s technology measures the maximum surface temperatures experienced by components in harsh high-temperature environments past operations, such as aircraft engines, gas turbines or automotive engines. The SCS approach uses a coating that luminesces when excited by a laser, with the luminescent light emitted relating directly to the peak exposure temperature experienced by the coating. In effect, the coatings can ‘remember’ any temperature within the range of 150 and 1,500°C. The digitised temperature data is plotted on a 3D CAD model of the analysed component generating a thermal map.

SCS uses the ABB robot to guide the laser around the test subject and record the coating’s response with an optical probe

Understanding exactly how heat is distributed across components working under extreme conditions helps engineers to design more environmentally friendly engines with improved combustion efficiency and reduced emissions. It will also help spot potential problems, thus improving engine efficiency, safety and prolonging the life of critical systems.

Before adopting the robot, SCS used a gantry system to move the test subject around in the path of the laser. Now the test subject remains stationery while the robotic arm rapidly moves the laser in a carefully calculated pattern to build up the map. SCS typically primes the system by feeding in 3D CAD drawings of the test components, which the robot then uses to calculate the optimum pattern of measurement points across the surface.

This approach is almost one third faster than the previous, gantry-based test procedure. The increased agility of the robotic system makes it easier to access the complete surface of complex components, where the laser and optical probe might previously have struggled to reach.

Mapping out the heat

During the test process, SCS uses the ABB robot to guide the laser around the test subject and record the coating’s response with an optical probe. It systematically builds up a detailed map of the surface - complete with the historical temperature profile - from a series of points. SCS then feeds the data into a 3D CAD model of the component to generate a thermal map.

The project was co-funded by Innovate UK, part of UK Research and Innovation, through the Government’s Industrial Strategy Challenge Fund (ISCF). After 18 months of R&D, the complete system was successfully tested and demonstrated using real engine components with complex and irregular surfaces. SCS offers this technology as a service, with manufacturers sending their components to SCS for testing.

According to Dr Jörg Feist, managing director at SCS, the key features that make the IRB 1200 ideal for this unusual application include its combination of compact size and good reach, as well as the relative ease with which it can be programmed to work through non-standard patterns of motion, rather than carrying out the kind of repetitious movements typically called for on a production line. ARREST required SCS to develop a sophisticated algorithm to compute the different moves that the robotic arm must make to reach all the measurement points efficiently, without any collisions or unnecessary moves.

“We are very pleased with the outcome of this project,” states Dr Feist. “The robotic system adds more cutting-edge technology to our sensing portfolio. Furthermore, it will enhance our capabilities in future projects to provide temperature data more efficiently on highly complex components.”

ABB’s account manager, Ian Schofield concludes: “We are excited that ABB Robotics has been chosen to be part of such a ground-breaking project and we hope to work again with SCS as their business continues to grow in future.”

https://new.abb.com

Company

ABB Limited

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