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Smart Helicopter Rotors : Optimization and Piezoelectric Vibration Control - Ranjan Ganguli

Smart Helicopter Rotors

Optimization and Piezoelectric Vibration Control

Paperback Published: 30th March 2019
ISBN: 9783319796758
Number Of Pages: 257

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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.

ISBN: 9783319796758
ISBN-10: 3319796755
Series: Advances in Industrial Control
Audience: General
Format: Paperback
Language: English
Number Of Pages: 257
Published: 30th March 2019
Publisher: SPRINGER VERLAG GMBH
Country of Publication: CH
Dimensions (cm): 23.5 x 15.49  x 1.45
Weight (kg): 0.39

Earn 373 Qantas Points
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