Simultaneous structural/control optimum design of composite plate with piezoelectric actuators

Youdan Kim, Dongjun Kum, Changho Nam

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper deals with the integrated structural/control design for the vibration suppression of a composite plate with segmented piezoelectric (PZT) actuators. The electric power used by the PZT materials becomes very important factor for real application to the control of flexible structures. The method to predict the power required for the control is presented and the power is used as a part of the objective functions in this paper. The structural weight, the state error energy, control energy, stability robustness, and the electric power required for vibration control are considered as the objective function. The locations of the PZT actuators are considered as control design variables. The plyorientation and thickness coefficients of the laminated composite plate are considered as structural design variables. The improved compromise multiobjective optimization by using reduction factor of performance indices is applied to solve this optimization problem. The sequential linear programming method with move limits is used. The sensitivity analysis which is required in optimization process is performed for the eigenstructure assignment control scheme and performance indices with respect to the design parameters. The results show the quite amount of reduction in structural weight as well as control performance indices through the optimization. The required electric power is also decreased.

Original languageEnglish (US)
Pages1-11
Number of pages11
StatePublished - 1997
Externally publishedYes
Event35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States
Duration: Jan 6 1997Jan 9 1997

Other

Other35th Aerospace Sciences Meeting and Exhibit, 1997
CountryUnited States
CityReno
Period1/6/971/9/97

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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