The application of buffet loads in the design of military aircraft structures are discussed and results from special detailed investigations of Eurofighter structural design are presented. The presentation deals with buffeting and related heavy structural vibrations, which can be observed at wing and vertical tail of high performance aircraft flying at high angles of attack. The aerodynamic buffet loads induced by vortices originating from wing leading edge and from front fuselage/canard are the reason for the dynamic response of the flexible aircraft structure. The resulting wing/fin/fuselage dynamic loads may lead to increased material fatigue. By introduction of the buffet forces and the resulting dynamic buffet induced dynamic loads in the structural design from the beginning the fatigue problem can be alleviated. The presentation shows the process of the structural design and vibration prediction using wind tunnel unsteady buffet measurements, their application in the dynamic response analysis, the validation of the buffet forces by comparison of different wind tunnel measurements and the verification of the buffeting vibration and dynamic loads prediction through flight test results.
The role of buffeting the structural design of eurofighter
2003
10 Seiten, 7 Quellen
Aufsatz (Konferenz)
Englisch
The Role of Buffet in the Structural Design of Eurofighter Typhoon
British Library Conference Proceedings | 2003
|Online Contents | 1998
Online Contents | 1995
|Online Contents | 2002