Major strides have been made in monitoring and control for gas turbines engines. Very little has changed in what is physically controlled or the actuator mechanisms themselves. Variables on civil aircraft remain largely restricted to fuel input, guide vanes and bleed valves. All other components redesigned as a compromise between efficiency at different operating conditions and the need to maintains table operation over the entire operating range. Recent developments in available actuation mechanisms have been identified as providing many opportunities for new control functions that could provide a major step change in the capabilities of the machines. Internal company reviews and internationally reported programmes have identified many control functions and mechanisms that could be used. Just one application of these technologies has already been identified as saving 0.3M Euro per aircraft year on transatlantic flights and a fleet CO2reduction of 8M Tonnes per year by 2020There is a continual push to improve system performance for a number of commercial and legislative objectives. These can be largely grouped as cost, competitive position and environmental impact. Advanced Actuation will help to address these issues with improved engine performance. To achieve this there is a need for imaginative research into the basic technologies that have already been identified and extensive studies to consider the manufacturing, operational and environmental issues.
The programme has three main elements;
Quantify the performance and operational benefits of extended actuation capabilities.
Research into selected technologies for the gas turbine environment (MEMS, SMA, Advanced Electromagnetics, Boundary Layer Manipulation and Active Vibration Control).
Evaluate the selected technologies in key applications (egg. variable nozzle, "virtual" VGV, tip seals)
Call for proposal
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Funding SchemeSTREP - Specific Targeted Research Project
Le Plessis Trevise