Smart Helicopter Rotors: Optimization and Piezoelectric Vibration Control

This book explores the use of smart helicopter rotors to achieve the smoothness of ride associated with jet-engined, fixed-wing aircraft. It demonstrates the potential of trailing-edge flaps and active-twist to minimize vibration in rotor-blade actuators, and highlights the importance of response surfaces in optimal placement of trailing-edge flaps. Active twist is also shown to be effective in reducing vibration caused by dynamic stall. The monograph is a valuable resource for researchers and engineers in aerospace, mechanical, and electrical engineering.

Format: Paperback / softback
Length: 257 pages
Publication date: 30 March 2019
Publisher: Springer International Publishing AG

Utilizing the remarkable properties of piezoelectric materials, this book showcases the immense potential of smart helicopter rotors to achieve the level of smoothness typically associated with jet-powered, fixed-wing aircraft. By employing innovative concepts such as trailing-edge flaps and active-twist, vibration control is effectively achieved. The authors' optimization-based approach highlights the advantages of incorporating multiple trailing-edge flaps, while also presenting algorithms for full-authority control of dual trailing-edge-flap actuators. Furthermore, the book delves into the topic of hysteresis nonlinearity in piezoelectric stack actuators, addressing it through the implementation of another algorithm. The concept of response surfaces plays a pivotal role in optimizing the placement of trailing-edge flaps.

Active twist involves the utilization of piezoelectrically induced shear actuation in rotating beams. This concept is then demonstrated for a thin-walled aerofoil-section rotor blade, focusing on feedback-control vibration minimization. Active twist proves to be highly effective in reducing vibration caused by dynamic stall. The comprehensive presentation of ideas, materials, and algorithms in this monograph is supported by extensive reporting of results from numerical simulations of smart helicopter rotors.

This monograph serves as a valuable resource for researchers and engineers with backgrounds in aerospace, mechanical, and electrical engineering who are interested in smart materials and vibration control. Advances in Industrial Control strives to report and foster the transfer of technology in control engineering, recognizing the profound impact of rapid advancements in control technology across all domains within the control discipline. The series provides a platform for researchers to present extended expositions of their latest work in various aspects of industrial control.

Weight: 381g
Dimension: 210 x 150 x 22 (mm)
ISBN-13: 9783319796758
Edition number: Softcover reprint of the original 1st ed. 2016