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Smart Helicopter Rotors - Optimization and Piezoelectric Vibration Control (Hardcover, 1st ed. 2016)
Loot Price: R3,347
Discovery Miles 33 470
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Smart Helicopter Rotors - Optimization and Piezoelectric Vibration Control (Hardcover, 1st ed. 2016)
Series: Advances in Industrial Control
Expected to ship within 12 - 17 working days
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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.
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