A tactical missile instrumented with pressure and acceleration sensors was flown on a fighter aircraft to help characterize the 'in carriage' flight environment. The pressure data has been analyzed with two techniques to determine if a simple, yet appropriate, model can be used to model forces applied to a structural finite element model. Analysis has revealed a nearly uniform 'convection' of narrow-band random forces along the missile, indication a highly coherent aerodynamic structure. The circumferential distribution of the standard deviation of measured pressures which tend to 'swirl' along the missile seem to indicate the existence of shed vortex-related 'swirl' of the aerodynamic excitation. Lateral vibration of the missile has been analyzed using finite element method, both with and without an accounting for correlation (convection and swirl) within the aerodynamic excitation. In some cases these effects may be extremly important.
Response of a tactical missile to aerodynamic excitation
Reaktion einer taktischen Rakete auf aerodynamische Anregung
1995
8 Seiten, 6 Bilder, 9 Quellen
Conference paper
English
Response of a tactical missile to aerodynamic excitation
AIAA | 1995
|Response of A Tactical Missile to Aerodynamic Excitation
British Library Conference Proceedings | 1995
|Response of a Tactical Missile to Convected Aerodynamic Excitation
Online Contents | 1996
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