A Static Aeroelastic Analysis of a Flexible Wing Mini Unmanned Aerial Vehicle

Idioma: inglés

Editorial: Creative Media Partners, LLC Mai 2025, 2025

1025078020 / 9781025078021

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Librería: AHA-BUCH GmbH, Einbeck, AlemaniaAHA-BUCH GmbH

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Neuware - The static aeroelastic behavior of the Nighthawk mini unmanned aerial vehicle is examined using acombined experimental and computational approach. Three wings are examined. In order of increasingstiffness they are: a flexible wing, a stiff wing, and a fictitious rigid wing with zero deflection. Photogrammetryis used during wind tunnel testing to measure the average deflected shape of the flexible and stiff wingsduring flight. The independent variables during wind tunnel tests are angle of attack (ranging from -5.1othrough 13.4o) and velocity, which is 20 mph, 30 mph, and 40 mph. Roll angle and yaw angle are controlvariables, held constant at 0o. The measured deflection of each wing is used to adjust the wing shape forcomputational fluid dynamics analysis. Solutions are obtained for the flexible, stiff, and undeflected (or rigid)wings using a steady-state viscous flow solver with a Spalart-Allmaras turbulence model. The flexible andstiff wings experience two forms of deformation during flight. They bend upward along the span increasingthe dihedral, and the leading edge twists downward (wing washout). The amplitude of deflection is greatestfor the flexible wing. As a result, the flexible wing is more stable, but also exhibits worse static aerodynamicperformance. The rigid wing has the greatest lift (CL max=1.29) and the highest lift-to-drag ratio (L/Dmax =10.2).Stall occurs first near the root for all three wings. None of the wings stall at the tip in the range of angles ofattack tested. A separation bubble forms under the wing at angles of attack less than 8o. This separationdecreases the overall lift. It is most prominent on the flexible wing.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

N° de ref. del artículo 9781025078021

Título
A Static Aeroelastic Analysis of a Flexible Wing Mini Unmanned Aerial Vehicle
Autor
Nathan A Pitcher
Editorial
Creative Media Partners, LLC Mai 2025
Año de publicación
2025
Estado
Neu
Encuadernación
Taschenbuch
Idioma
inglés
ISBN 10
1025078020
ISBN 13
9781025078021
Peso del artículo
168 gramos
Dimensiones
234x156x6 mm

AHA-BUCH GmbH

Einbeck, Alemania

Vendedor de 5 estrellas

Vendedor de IberLibro desde 14 de agosto de 2006

Tarifas de envío de Alemania a Estados Unidos de America

ArtículoDe 7 a 10 días hábilesDe 5 a 7 días hábiles
Primer artículoEUR 35,00EUR 45,00
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Información empresarial del vendedor

AHA-BUCH GmbH

Garlebsen 48
Einbeck, Alemania 37574