Overview
- Shows the reader how modelling, control and optimization of smart helicopter rotors can reduce vibration and thereby increase ride comfort
- Presents new algorithms for full-authority control of rotor-blade flaps and compensation for hysteresis nonlinearity in piezoelectric actuators
- Explores the practicability of induced-shear actuation and its advantages in obviating vibration caused by active stall
- Includes supplementary material: sn.pub/extras
Part of the book series: Advances in Industrial Control (AIC)
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Table of contents (11 chapters)
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Front Matter
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Back Matter
Keywords
About this book
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 tobe 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.
Authors and Affiliations
About the authors
Bibliographic Information
Book Title: Smart Helicopter Rotors
Book Subtitle: Optimization and Piezoelectric Vibration Control
Authors: Ranjan Ganguli, Dipali Thakkar, Sathyamangalam Ramanarayanan Viswamurthy
Series Title: Advances in Industrial Control
DOI: https://doi.org/10.1007/978-3-319-24768-7
Publisher: Springer Cham
eBook Packages: Engineering, Engineering (R0)
Copyright Information: Springer International Publishing Switzerland 2016
Hardcover ISBN: 978-3-319-24766-3Published: 24 December 2015
Softcover ISBN: 978-3-319-79675-8Published: 30 March 2019
eBook ISBN: 978-3-319-24768-7Published: 16 December 2015
Series ISSN: 1430-9491
Series E-ISSN: 2193-1577
Edition Number: 1
Number of Pages: XIII, 257
Number of Illustrations: 213 b/w illustrations
Topics: Aerospace Technology and Astronautics, Vibration, Dynamical Systems, Control, Optical and Electronic Materials, Control and Systems Theory