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Details of Grant 

EPSRC Reference: GR/R15412/01
Title: A Mathematical Model For the Wear Process of Worm Gears
Principal Investigator: Morrish, Dr L
Other Investigators:
Munro, Professor R
Researcher Co-Investigators:
Project Partners:
British Gear Association David Brown Radicon Ltd Highfield Transmissions Ltd
Holroyd Machine Tools Gears & Mechanical Engineering Research Institut Otis Investments Plc
Renold Engineering
Department: Sch of Computing and Engineering
Organisation: University of Huddersfield
Scheme: Standard Research (Pre-FEC)
Starts: 01 April 2001 Ends: 30 September 2004 Value (£): 193,559
EPSRC Research Topic Classifications:
Eng. Dynamics & Tribology Mech. & Fluid Power Transmiss.
EPSRC Industrial Sector Classifications:
Transport Systems and Vehicles
Related Grants:
GR/R15429/01
Panel History:  
Summary on Grant Application Form
The research will involve a theoretical study of the wear process in worm gears via mathematical modelling, using the experimental data acquired within a parallel experimental project at Huddersfield University. A novel theoretical worm gear wear model will be developed to describe and quantify the wear process that is inherent in the use of the bronze wheel/steel worm combination. This will enhance and add value to the recently developed model for worm gear cutting and meshing processes, now extensively used in industry, by extending it to also simulate wear of the contacting worm and wheel surfaces.The model will incorporate the particular load sharing, tooth load distribution and kinematic conditions of worm gears and include input from elastohydrodynamic lubrication analyses in the form of expected oil film thickness, degree of boundary lubrication, surface traction forces, and surface temperatures.The model will be verified using the experimental data from Huddersfield University and the test equipment of the industrial collaborators, as well as published experimental data from other world gear research centres. The complete model will predict the performance of a gear pair in service, and hence will put the worm gear design process on to a scientific platform.
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Further Information:  
Organisation Website: http://www.hud.ac.uk