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Showing 1 to 13 of 13 for “"Aerodynamik"”.
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Aeroservoelastisches Modell zur Beschreibung der instationären Aerodynamik für nichtlineare beliebige Eingangsgrößen im Zeitbereich
In this thesis an aeroservoelastic model for an airfoil-rudder-system with three degrees of freedom is established in time domain. This leads to the design of control laws for active flutter suppression. The response of the unsteady aerodynamics and the system behav-iour with respect to a …
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Optimierung der aerodynamischen und aeroakustischen Eigenschaften von Radialventilatoren mit der Methode der inversen Auslegung
… bewertet. Die experimentellen Untersuchungen zur Aerodynamik und Akustik erfolgen an einem Kammerprüfstand nach DIN EN ISO 5801 bzw. mithilfe der Kanal-Methode DIN EN ISO 5136. Für die numerischen Strömungssimulationen werden die instationären Reynoldsgemittelten Navier-Stokes-Gleichungen genutzt. …
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Identifizierung flugdynamischer Kenngrößen eines künstlich stabilisierten Raumflugzeugs
Enhanced methods for the determination of flightdynamic parameters are presented in this study. Because of their simple setup this study concentrates on two methods that have to be modified to study the unstable spaceplane configuration PHOENIX. In the wind tunnel method of free oscillation the …
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Anatomical, morphometrical and biomechanical studies of barn owls' and pigeons' wings
Wings and feathers of barn owls (Tyto alba) were investigated with anatomical, morphometrical and biomechanical methods in order to specify noise reduction and noise suppressing structures evolved by the owl. Pigeons (Columba livia) with a similar body weight were taken as a reference species. Barn …
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Missionsorientierte multidisziplinäre Auslegung geregelter Kleinstfluggeräte
This thesis describes a method for a mission oriented multidisciplinary design for controlled Micro Air Vehicles (MAV). MAV’s are unmanned air vehicles with maximum dimensions smaller than 50 centimetres, whereby their dimensions are much smaller than the ones a unmanned air vehicles used up to …