The Rotating Beam Problem in Helicopter Dynamics
The book addresses computational methods for solving the problem of vibration, response, loads and stability of a helicopter rotor blade modeled as a rotating beam with flap or out-of-plane bending. The focus is on explaining the implementation of the fin
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Ranjan Ganguli Vijay Panchore
The Rotating Beam Problem in Helicopter Dynamics
Foundations of Engineering Mechanics Series editors V.I. Babitsky, Loughborough, Leicestershire, UK Jens Wittenburg, Karlsruhe, Germany
More information about this series at http://www.springer.com/series/3582
Ranjan Ganguli Vijay Panchore •
The Rotating Beam Problem in Helicopter Dynamics
123
Ranjan Ganguli Department of Aerospace Engineering Indian Institute of Science Bangalore, Karnataka India
Vijay Panchore Department of Aerospace Engineering Indian Institute of Science Bangalore, Karnataka India
ISSN 1612-1384 ISSN 1860-6237 (electronic) Foundations of Engineering Mechanics ISBN 978-981-10-6097-7 ISBN 978-981-10-6098-4 (eBook) https://doi.org/10.1007/978-981-10-6098-4 Library of Congress Control Number: 2017953797 © Springer Nature Singapore Pte Ltd. 2018 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. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by Springer Nature The registered company is Springer Nature Singapore Pte Ltd. The registered company address is: 152 Beach Road, #21-01/04 Gateway East, Singapore 189721, Singapore
Preface
The helicopter is a complicated dynamic system. A key aspect of the helicopter is the main rotor which provides lift, propulsive thrust, and control capacity. Modeling of helicopter rotor dynamics is complicated by highly flexible blades and aerodynamics. Comprehensive books on helicopter dynamics have been written. However, they typically derive and discuss the rigid blade equations and provide a cursory treatment to the elastic blade equations, aerodynamic modeling, and solution method for blade response and stability. Thus, a large pedagogical gap exists between the helicopter dynamic books and the theory manuals of the comprehensive rotor codes. This book tries to fill this gap. We explain the basics of helicopter d
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