Techno Press
Techno Press

Smart Structures and Systems   Volume 15, Number 4, April 2015, pages 1041-1062
DOI: http://dx.doi.org/10.12989/sss.2015.15.4.1041
 
Optimal placement of piezoelectric actuators and sensors on a smart beam and a smart plate using multi-objective genetic algorithm
Tamara Nestorović, Miroslav Trajkov and Seyedmehdi Garmabi

 
Abstract     [Full Text]
    In this paper a method of finding optimal positions for piezoelectric actuators and sensors on different structures is presented. The genetic algorithm and multi-objective genetic algorithm are selected for optimization and H norm is defined as a cost function for the optimization process. To optimize the placement concerning the selected modes simultaneously, the multi-objective genetic algorithm is used. The optimization is investigated for two different structures: a cantilever beam and a simply supported plate. Vibrating structures are controlled in a closed loop with feedback gains, which are obtained using optimal LQ control strategy. Finally, output of a structure with optimized placement is compared with the output of the structure with an arbitrary, non-optimal placement of piezoelectric patches.
 
Key Words
    optimal location; smart structures; H norm; genetic algorithm; multi-objective genetic algorithm
 
Address
Tamara Nestorović, Miroslav Trajkov and Seyedmehdi Garmabi: Ruhr-Universität Bochum, Mechanics of Adaptive Systems Universitätsstr, 150, D-44801 Bochum, Germany
 

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2019 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: technop@chol.com