Frequency-Domain Identification of Aircraft Structural Modes from Short-Duration Flight Tests
| Autor: | Pierre Vacher, R.A. de Callafon, Jérémy Vayssettes, Guillaume Mercère |
|---|---|
| Přispěvatelé: | Laboratoire d'Informatique et d'Automatique pour les Systèmes (LIAS), Université de Poitiers-ENSMA, ONERA, Université de Toulouse [Toulouse], ONERA-PRES Université de Toulouse |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
0209 industrial biotechnology
Engineering Iterative method business.industry Modal analysis 020208 electrical & electronic engineering Control engineering 02 engineering and technology Computer Science Applications Parameter identification problem Identification (information) Matrix (mathematics) 020901 industrial engineering & automation Control and Systems Engineering Frequency domain 0202 electrical engineering electronic engineering information engineering Flutter Fraction (mathematics) [INFO]Computer Science [cs] business |
| Zdroj: | International Journal of Control International Journal of Control, Taylor & Francis, 2014, 87 (7), pp.1352--1372. ⟨10.1080/00207179.2013.870380⟩ |
| ISSN: | 0020-7179 1366-5820 |
| Popis: | This article presents identification algorithms dedicated to the modal analysis of civil aircraft structures during in-flight flutter tests. This particular operational framework implies several specifications for the identification procedure. To comply with these requirements, the identification problem is formulated in the frequency domain as an output-error problem. Iterative identification methods based on structured matrix fraction descriptions are used to solve this problem and to identify a continuous-time model. These iterative methods are specifically designed to deal with experiments where short-duration tests with multiple-input excitations are used. These algorithms are first discussed and then evaluated through a simulation example illustrative of the in-flight modal analysis of a civil aircraft. Based on these evaluation results, an efficient iterative algorithm is suggested and applied to real flight-test data measured on board a military aircraft. |
| Databáze: | OpenAIRE |
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