Smart Structures and Systems

  • 제15권4호
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  • Pages.1041-1062
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  • 2015
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Optimal placement of piezoelectric actuators and sensors on a smart beam and a smart plate using multi-objective genetic algorithm

  • Nestorovic, Tamara (Ruhr-Universitat Bochum, Mechanics of Adaptive Systems Universitatsstr) ;
  • Trajkov, Miroslav (Ruhr-Universitat Bochum, Mechanics of Adaptive Systems Universitatsstr) ;
  • Garmabi, Seyedmehdi (Ruhr-Universitat Bochum, Mechanics of Adaptive Systems Universitatsstr)
  • 투고 : 2013.01.21
  • 심사 : 2014.03.19
  • 발행 : 2015.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

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 $H_{\infty}$ 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.

키워드

참고문헌

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