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- W2189446850 abstract "In the current report applications of an advanced vibration monitoring system used on EJ200, the engine for EuroFighter EF2000 Typhoon, in combination with an extensive 3D Finite Element model of the whole engine for vibration monitoring and diagnosis are presented. A description of the measurement system on wing and the methods used for vibration monitoring is given. In order to reach a high level of consistency, the flying monitoring system is also used on the test-bed in addition to the usual test-bed equipment. Therefore a common database with common file formats is created which guarantees reliable comparison of the measurements from the test-bed and on wing. Extensive 3D Finite Element models of the whole engine and of single components are explained. Different techniques for processing of the models are discussed. The combination of the whole engine Finite Element model and the vibration monitoring system of the real engine represents a very powerful tool to evaluate the impact of the measured vibrations on the mechanical condition of the engine. For selected cases of internal excitations, such as unbalance on the different shafts, and external excitations, such as airbrake buffeting and icing conditions, engine response is analysed based on the measured transient signals. The displacements and stresses on particular areas of the engine due to one of these load cases are evaluated in detail. Conclusions and an outlook of future activities in the field of the vibration monitoring and diagnosis complete the report." @default.
- W2189446850 created "2016-06-24" @default.
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- W2189446850 date "2000-01-01" @default.
- W2189446850 modified "2023-09-26" @default.
- W2189446850 title "Investigations into engine transient response due to internal and external dynamic excitations" @default.
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