| EPSRC Reference: |
GR/L22874/01 |
| Title: |
INVESTIGATION INTO MECHANISMS OF NOISE GENERATION IN LARGE INDUCTION MACHINES. |
| Principal Investigator: |
Williamson, Professor S |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Engineering |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 1997 |
Ends: |
01 April 1997 |
Value (£): |
233,765
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| EPSRC Research Topic Classifications: |
| Electric Motor & Drive Systems |
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| EPSRC Industrial Sector Classifications: |
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Summary on Grant Application Form |
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The investigators will compute and measure the flux distribution in a large (700 kW) 4-pole induction motor on full load, with particular reference to the sides and faces of the stator teeth. The flux distribution will then be used to compute the mechanical stress distribution, which will be passed to the academic collaborator (Dr S Garvey, Aston University) for converting to a strain distribution, leading to a prediction of acoustic noise. The acoustic noise predictions will be verified against measurements made on the test motor. The relative importance of tangential and radial tooth forces as agents of noise production will be assessed, as will the roles of saturation and magnetostriction. The investigators will then carry out a theoretical and experimental investigation of the effects of supply unbalance and manufacturing tolerances on acoustic noise production. Finally, a design-office usable algorithm for electromagnetically produced acoustic noise from large induction motors will be devised and tested against survey results obtained from a wide range of production motors.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |