Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation
Non-intrusive measurement of blade condition within gas turbines is of major interest within all areas of their use. It is proposed that the measurement of the casing vibration, due to the aerodynamic-structural interaction within the turbine, could provide a means of blade condition monitoring and...
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| Format: | Conference Paper |
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Engineers Australia
2007
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| Online Access: | http://hdl.handle.net/20.500.11937/32981 |
| _version_ | 1848753817734086656 |
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| author | Forbes, Gareth Randall, R. |
| author2 | Martin Veidt |
| author_facet | Martin Veidt Forbes, Gareth Randall, R. |
| author_sort | Forbes, Gareth |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Non-intrusive measurement of blade condition within gas turbines is of major interest within all areas of their use. It is proposed that the measurement of the casing vibration, due to the aerodynamic-structural interaction within the turbine, could provide a means of blade condition monitoring and modal parameter estimation. In order to understand the complex relationship between blade vibrations and casing response, an analytical model of the casing and simulated pressure signal associated with the rotor blades is presented. A mathematical formulation is undertaken of the internal pressure signal due to both the rotating bladed disk as well as individual blade vibrations and the solution of the casing response is formulated. Excitation by the stator blades and their contribution to the casing response is also investigated. Some verification of the presented analytical model is provided by comparison with Finite Element Analysis results for various rotor rotational speeds. |
| first_indexed | 2025-11-14T08:30:33Z |
| format | Conference Paper |
| id | curtin-20.500.11937-32981 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:30:33Z |
| publishDate | 2007 |
| publisher | Engineers Australia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-329812017-02-28T01:51:01Z Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation Forbes, Gareth Randall, R. Martin Veidt gas turbines casing vibration blade faults simulation Non-intrusive measurement of blade condition within gas turbines is of major interest within all areas of their use. It is proposed that the measurement of the casing vibration, due to the aerodynamic-structural interaction within the turbine, could provide a means of blade condition monitoring and modal parameter estimation. In order to understand the complex relationship between blade vibrations and casing response, an analytical model of the casing and simulated pressure signal associated with the rotor blades is presented. A mathematical formulation is undertaken of the internal pressure signal due to both the rotating bladed disk as well as individual blade vibrations and the solution of the casing response is formulated. Excitation by the stator blades and their contribution to the casing response is also investigated. Some verification of the presented analytical model is provided by comparison with Finite Element Analysis results for various rotor rotational speeds. 2007 Conference Paper http://hdl.handle.net/20.500.11937/32981 Engineers Australia restricted |
| spellingShingle | gas turbines casing vibration blade faults simulation Forbes, Gareth Randall, R. Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation |
| title | Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation |
| title_full | Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation |
| title_fullStr | Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation |
| title_full_unstemmed | Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation |
| title_short | Simulated Gas Turbine Casing Response to Rotor Blade Pressure Excitation |
| title_sort | simulated gas turbine casing response to rotor blade pressure excitation |
| topic | gas turbines casing vibration blade faults simulation |
| url | http://hdl.handle.net/20.500.11937/32981 |