Statics and Rotational Dynamics of Composite Beams
This book presents a comprehensive study of the nonlinear statics and dynamics of composite beams and consists of solutions with and without active elements embedded in the beams. The static solution provides the initial conditions for the dynamic analysi
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Statics and Rotational Dynamics of Composite Beams
Statics and Rotational Dynamics of Composite Beams
Mehrdaad Ghorashi
Statics and Rotational Dynamics of Composite Beams
123
Mehrdaad Ghorashi University of Southern Maine Gorham, ME USA
ISBN 978-3-319-14958-5 DOI 10.1007/978-3-319-14959-2
ISBN 978-3-319-14959-2
(eBook)
Library of Congress Control Number: 2015960409 © Springer International Publishing Switzerland 2016 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. Printed on acid-free paper This Springer imprint is published by SpringerNature The registered company is Springer International Publishing AG Switzerland
To the memory of my beloved mother, Touraandokht Khoshravaan, and my dear brother, Mahdaad
Preface
A helicopter, with its capability of vertical take-off and landing, is a crucial means of aerial transportation. In fire-fighting rescue operations and missions for helping survivors of an earthquake or an avalanche, helicopters have played vital roles. The expansion of the domain of the application of helicopters, however, faces a few serious constraints; among them is the relatively poor ride quality due to severe vibration and noise. Vibration can reduce the fatigue life of structural components and hence increase the operating costs. Furthermore, environmental consequences of noise and vibration have limited the range of application and the velocity of helicopters. That is why reducing noise and vibration is a major goal in the design of helicopters. Smart materials are good candidates for providing a way to control noise and vibrations in helicopters. Embedded strain sensing and actuation in active structures can be used to reduce blade vibration, minimize blade vortex interaction, decrease noise, and improve stability and response characteristics of the helicopter (Traugott et al. 2005). Reliable and economically viable design of structures and machine elements is impossible without the use of accurate and efficient methods of structural analysis. Su
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