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Nonlinear equations of motion for elastic bending and torsion of isotropic rotor blades with piezoceramic actuation

Thakkar, Dipali and Ganguli, Ranjan (2003) Nonlinear equations of motion for elastic bending and torsion of isotropic rotor blades with piezoceramic actuation. In: SPIE: Smart Materials, Structures, and Systems, 12-14 December, Bangalore, India, Vol.5062, 501-508.

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Abstract

Nonlinear equations of motion for elastic bending and torsion of isotropic rotor blades with surface bonded piezoceramic actuators are derived using Hamilton's principle. The equations are then solved using finite element discretization in the spatial and time domain. The effect of piezoceramic actuation is investigated for bending and torsion response of a rotating beam. It is found that the centrifugal stiffening effect reduces the tip transverse bending deflection and elastic twist as the rotation speed increases. However, the effect of rotation speed on the tip elastic twist is less pronounced. The importance of nonlinear terms for accurate prediction of torsion response is also shown.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to International Society for Optical Engineering.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 01 May 2007
Last Modified: 27 Aug 2008 12:42
URI: http://eprints.iisc.ernet.in/id/eprint/10210

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