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Smart Helicopter Rotors

Optimization and Piezoelectric Vibration Control

  • Ranjan Ganguli
  • Dipali Thakkar
  • Sathyamangalam Ramanarayanan Viswamurthy

Part of the Advances in Industrial Control book series (AIC)

Table of contents

  1. Front Matter
    Pages i-xiii
  2. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 1-40
  3. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 41-70
  4. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 71-80
  5. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 81-101
  6. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 103-111
  7. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 113-127
  8. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 129-164
  9. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 165-176
  10. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 177-187
  11. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 189-219
  12. Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
    Pages 221-249
  13. Back Matter
    Pages 251-257

About this book

Introduction

Exploiting the properties of piezoelectric materials to minimize vibration in rotor-blade actuators, this book demonstrates the potential of smart helicopter rotors to achieve the smoothness of ride associated with jet-engined, fixed-wing aircraft. Vibration control is effected using the concepts of trailing-edge flaps and active-twist. The authors’ optimization-based approach shows the advantage of multiple trailing-edge flaps and algorithms for full-authority control of dual trailing-edge-flap actuators are presented. Hysteresis nonlinearity in piezoelectric stack actuators is highlighted and compensated by use of another algorithm. The idea of response surfaces provides for optimal placement of trailing-edge flaps.

The concept of active twist involves the employment of piezoelectrically induced shear actuation in rotating beams. Shear is then demonstrated for a thin-walled aerofoil-section rotor blade under feedback-control vibration minimization. Active twist is shown to be significant in reducing vibration caused by dynamic stall. The exposition of ideas, materials and algorithms in this monograph is supported by extensive reporting of results from numerical simulations of smart helicopter rotors.

This monograph will be a valuable source of reference for researchers and engineers with backgrounds in aerospace, mechanical and electrical engineering interested in smart materials and vibration control.

Advances in Industrial Control aims to report and encourage the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.

Keywords

Helicopter Dynamics Optimal Control Piezoelectric Materials Smart Structures Vibration Control

Authors and affiliations

  • Ranjan Ganguli
    • 1
  • Dipali Thakkar
    • 2
  • Sathyamangalam Ramanarayanan Viswamurthy
    • 3
  1. 1.Department of Aerospace EngineeringIndian Institute of ScienceBangaloreIndia
  2. 2.Department of Aeroanutical Engineering Sardar Vallabhbhai Patel Institute of TechnologyVasadIndia
  3. 3.Advanced Composites DivisionCSIR-National Aerospace LaboratoriesBangaloreIndia

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-24768-7
  • Copyright Information Springer International Publishing Switzerland 2016
  • Publisher Name Springer, Cham
  • eBook Packages Engineering
  • Print ISBN 978-3-319-24766-3
  • Online ISBN 978-3-319-24768-7
  • Series Print ISSN 1430-9491
  • Series Online ISSN 2193-1577
  • Buy this book on publisher's site
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