| EPSRC Reference: |
GR/L54905/01 |
| Title: |
POROELASTIC MATERIALS FOR NOISE CONTROL |
| Principal Investigator: |
Hothersall, Professor D |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Civil & Environmental Engineering |
| Organisation: |
University of Bradford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
09 October 1997 |
Ends: |
08 October 2000 |
Value (£): |
134,420
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| EPSRC Research Topic Classifications: |
| Civil Engineering Materials |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Recent research on advanced, flexible, granular, porous materials suggests the possibility of producing porous media that possess not only sound absorption properties but also pronounced resonant structural vibrational characteristics. The microstructure of consolidated granular materials can be designed since it is a function of the granules and the consolidation process. The desirable combination of structural motion and viscothermal acoustic boundary layer absorption in the pores of the material may be exploited in a single structure. The purpose of the proposed research is to extend existing mathematical models for the acoustic and mechanical properties of elastic porous media, and to validate these new models by the use of experimental testing. The models will then act as the basis of a predictive scheme for the design of acoustically efficient, thin porous flexible panels for use in noise reduction. It is anticipated that new physical mechanisms of sound absorption in porous elastic elastic solids will be utilised to improve upon the overall acoustic performance observed in most conventional passive absorbers. Novel types of effective noise abatement absorbers will be manufactured and tested. The practical application of this type of absorber to road and rail noise barriers will be considered.
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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.brad.ac.uk |