NASA RESEARCH ON FLEXIBLE WINGS
نویسندگان
چکیده
منابع مشابه
Tumbling dynamics of flexible wings
The influence of flexibility on the flight of autorotating winged seedpods is examined through an experimental investigation of tumbling rectangular paper strips freely falling in air. Our results suggest the existence of a critical length above which the wing bends. We develop a theoretical model that demonstrates that this buckling is prompted by inertial forces associated with the tumbling m...
متن کاملTumbling dynamics of passive flexible wings.
The influence of flexibility on the flight of autorotating winged seedpods is examined through an experimental investigation of tumbling rectangular paper strips freely falling in air. Our results suggest the existence of a critical length above which the wing bends. We develop a theoretical model that demonstrates that this buckling is prompted by inertial forces associated with the tumbling m...
متن کاملDynamic Response of Highly Flexible Flying Wings
This paper presents a method to model and analyze the coupled nonlinear flight dynamics and aeroelasticity of highly flexible flyingwings. A low-order nonlinear strain-based finite element framework is used, which is capable of capturing the fundamental impact of geometrically nonlinear effects in a computationally effective formulation target for preliminary vehicle design and control evaluati...
متن کاملFlow Around Flapping Flexible Flat Plate Wings
This study investigates the unsteady flow phenomena generated from plunging wings with varying flexibility. The experiments were conducted in a wind tunnel with forward flight conditions at a chord based Reynolds number of 5300. The wings are fabricated out of homogeneous isotropic materials with values of 55 and 1702. The conditions of these experiments are matched to previous studies in a wat...
متن کاملFlight Dynamics of Highly Flexible Flying Wings
The paper presents a theory for flight dynamic analysis of highly flexible flying wing configurations. The analysis takes into account large aircraft motion coupled with geometrically nonlinear structural deformation subject only to a restriction to small strain. A large motion aerodynamic loads model is integrated into the analysis. The analysis can be used for complete aircraft analysis inclu...
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ژورنال
عنوان ژورنال: Annals of the New York Academy of Sciences
سال: 1968
ISSN: 0077-8923,1749-6632
DOI: 10.1111/j.1749-6632.1968.tb15238.x