Abstract
High Cycle Fatigue (HCF) of turbine blades is a major cause of failure in turbochargers. In order to validate changes to blades intended to reduce fatigue failure, accurate measurement of blade dynamics is necessary. Strain gauging has limitations, so an alternative method is investigated. A description of the tip-timing method is given, applied to turbocharger testing. The advantages and disadvantages of laser probes are assessed. Examples of output data and interpretation are presented and compared with computer simulation. It is shown that laser tip-timing technology gives a more complete view of turbine vibration than the alternative measurement systems.
Original language | English |
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Title of host publication | Institution of Mechanical Engineers - 10th International Conference on Turbochargers and Turbocharging |
Publisher | Woodhead Publishing |
Pages | 173-181 |
Number of pages | 9 |
ISBN (Electronic) | 9780857096135 |
ISBN (Print) | 9780857092090 |
Publication status | Published - 11 May 2012 |
Externally published | Yes |
Event | 10th International Conference on Turbochargers and Turbocharging - London, United Kingdom Duration: 15 May 2012 → 16 May 2012 Conference number: 10 |
Conference
Conference | 10th International Conference on Turbochargers and Turbocharging |
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Country/Territory | United Kingdom |
City | London |
Period | 15/05/12 → 16/05/12 |