| EPSRC Reference: |
GR/N11872/01 |
| Title: |
DAMAGE DETECTION AND DAMAGE TOLERANCE IN ROTATING MECHANICAL SYSTEMS |
| Principal Investigator: |
Irving, Professor P |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Industrial and Manufacturing Scie |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2000 |
Ends: |
31 December 2003 |
Value (£): |
308,370
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| EPSRC Research Topic Classifications: |
| Eng. Dynamics & Tribology |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The project seeks to develop techniques to achieve damage tolerant design in high strength rotating components via in-service damage and strain monitoring. A speckle shearing interferometer (SSI) will be developed of size and robustness capable of accommodation within rotating mechanical systems. A helicopter rotor will be the target system. In its final form, the SSI will detect and monitor fatigue cracks and strains during service operation. Laboratory trials of the SSI will be conducted to assess Probability of Detection (POD) of cracks and strains. This will be determined for a number of SSI configurations, by monitoring the development of fatigue cracks in samples subjected to helicopter loading spectra. Detailed studies will be made of fatigue crack initiation and growth in the selected component using short and long crack fracture mechanics measurement and analysis techniques. These results will be combined with the SSI performance data in Monte Carol simulations. These will investigate the influence of changes in both crack size- POD relationship and strain measurement accuracy on the probability of failure in a damage tolerant design of component. Based on these results, a specification for an SSI system to be fitted in a helicopter will be developed for future trials.EngProg\
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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.cranfield.ac.uk |