Details of Grant 

EPSRC Reference:	GR/L62238/01
Title:	ACTIVE CONTROL OF ROTATING MACHINERY IN POTENTIALLY DESTRUCTIVE NON-LINEAR OPERATING STATES
Principal Investigator:	Burrows, Professor C.R
Other Investigators:	Keogh, Professor P Hunt, Emeritus Professor G Stammers, Dr CW
Researcher Co-Investigators:
Project Partners:	Edwards High Vacuum International Ltd
Department:	Mechanical Engineering
Organisation:	University of Bath
Scheme:	Standard Research (Pre-FEC)
Starts:	01 April 1998	Ends:	31 March 2001	Value (£):	130,081
EPSRC Research Topic Classifications:	Control Engineering
EPSRC Industrial Sector Classifications:	Energy
Related Grants:
Panel History:
Summary on Grant Application Form
In high speed rotating machinery with active elements, a component failure may lead to operational difficulties. The reliance on passive emergency retainer bearings could result in severe impacting and rubbing, with destructive consequences. At present, controllers for such systems are primitive in the sense that they do not utilise the full potential of the active elements. The programme of research is proposed to address the problem of retaining active partially failed systems or when base excited motions occur. The research will examine active control approaches to provide the optimum level of damage limitation. The principal aim is retention of plant structural integrity. The research will involve non-linear dynamic modelling, control strategy design and implementation, followed by experimental testing. Guidelines for controller structure will be produced. The work will enhance the design of high speed rotating machines with increased safety margins. The potential of more reliable and efficient operation machines with increased safety margins. The potential of more reliable and efficient operation could increase the UKs market share for certain types of machine without significant increases in cost. The results will also enable generic rotor/magnetic bearing systems to be considered for operation in transport applications and in seismically qualified environments.
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Organisation Website:	http://www.bath.ac.uk