Details of Grant 

EPSRC Reference:	GR/S52308/01
Title:	Prediction of aeroelastic instabilities for aircraft subject to nonlinear unsteady aerodynamic forces
Principal Investigator:	Dimitriadis, Dr G
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Mechanical Aerospace and Civil Eng
Organisation:	University of Manchester, The
Scheme:	Advanced Fellowship (Pre-FEC)
Starts:	01 October 2003	Ends:	31 July 2007	Value (£):	194,510
EPSRC Research Topic Classifications:	Aerodynamics
EPSRC Industrial Sector Classifications:	Aerospace, Defence and Marine
Related Grants:
Panel History:	Panel Date Panel Name Outcome 28 May 2003 Engineering Advanced Fellowships Interview Panel Deferred 02 May 2003 Engineering Fellowships Sift Panel 2003 Deferred
Summary on Grant Application Form
Over the past decade there has been a pronounced increase in research concerning nonlinear aeroelasticity. Nonlinearities give rise to phenomena such as Limit Cycle Oscillations (LCOs) that cannot occur if the system is linear. Current industrial practice completely ignores nonlinearity. However, Limit Cycle Oscillations do happen and, even thou they are not as catastrophic as flutter, they can reduce the performance of an aircraft as well as seriously increase the probability of fatigue failure. The aim of this project is to produce a set of general methodologies capable to predict the occurrence of aeroelastic instabilities due to aerodynamic non-linearity. During the project, methodologies will be developed for the prediction of aeroelastic instabilities at the design stage and also for the pinpointing of the instability boundaries of prototype aircraft from flight test data. The techniques will be able to handle all major aerodynamic nonlinearities prevalent in aerospace applications and will make use of measured flight test data as well as mathematical modelling and simulation.
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Organisation Website:	http://www.man.ac.uk