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Flutter control using resistively shunted piezoceramics

Published online by Cambridge University Press:  03 February 2016

S. B. Kandagal  and
K. Venkatraman
S. B. Kandagal
Affiliation:
sbk@aero.iisc.ernet.in, Department of Aerospace Engineering, Indian Institute of Science Bangalore, India
K. Venkatraman
Affiliation:
sbk@aero.iisc.ernet.in, Department of Aerospace Engineering, Indian Institute of Science Bangalore, India
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Abstract

This paper investigates the feasibility of flutter control using resistively shunted piezoceramics. 2D aerofoil model is elastically restrained in heave and pitch by a set of leaf springs modeled as Bernoulli-Euler beams. The piezoceramic transducers are bonded to the leaf springs. Unsteady aerodynamic theory is used to solve the flutter determinant incorporating the additive damping terms due to resistive shunting. Tuned dampers realised by resistive shunted piezoceramics in heave and pitch springs could enhance flutter speed in the range 25-50 % based on additive damping of 10 % achieved due to resistive shunting of piezoceramics in either pitch spring, heave spring or both.

Type
Research Article
Information
The Aeronautical Journal , Volume 114 , Issue 1156 , June 2010 , pp. 387 - 390
Copyright
Copyright © Royal Aeronautical Society 2010 

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