Optimal vibration control of a rotating shearable blade using distributed piezoelectric sensing and actuation

Naresh K. Chandiramani; Liviu I. Librescu

doi:10.1117/12.475241

10 July 2002 Optimal vibration control of a rotating shearable blade using distributed piezoelectric sensing and actuation

Naresh K. Chandiramani, Liviu I. Librescu

Author Affiliations +

Proceedings Volume 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control; (2002) https://doi.org/10.1117/12.475241
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

A rotating composite blade, modeled as a box-beam that incorporates a number of non-classical effects such as transverse shear traction free boundaries and restrained warping, is considered. The blade consists of host orthotropic (graphite-epoxy laminate) with surface embedded and spanwise distributed transversely isotropic (PZT-4) sensors and actuators. The total current output from all sensors is distributed to the actuators after suitable weighting. A modified Galerkin method that uses only admissible functions is considered, and the optimal control problem is studied via the classical and instantaneous LQR methods. The effect of transverse shear, ply angle, fulfilment of traction free boundary conditions, piezopatch location and size, and weighting matrices in the performance index on the controlled blade-tip response is obtained for various excitations, and pertinent conclusions are outlined.

Citation Download Citation

Naresh K. Chandiramani and Liviu I. Librescu "Optimal vibration control of a rotating shearable blade using distributed piezoelectric sensing and actuation", Proc. SPIE 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control, (10 July 2002); https://doi.org/10.1117/12.475241

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available