Simultaneous optimization of structural/control design utilizing eigenstructure assignment scheme

Youdan Kim, Dongjun Kum, Changho Nam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper presents an approach for an integrated optimum design of structure and control system. A composite plate with segmented piezoelectric actuators is considered to design control system for vibration suppression. For the design of control system, a robust eigenstructure assignment scheme is adopted. Optimization technique is applied to minimize structural weight as well as control performance indices subject to constraints. The locations of the piez.oelectric actuators are considered as control design variables, and the thickness distribution of composite layers are considered as structural design variables. The integrated structural/control design is formulated as a constrained multi-objective 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. Numerical example shows the capability in determining the optimal thickness distributions of the composite layer, and locations of the piezoelectric actuators. The results show the quite amount of reduction in structural weight as well as control performance indices through the optimization.

Original languageEnglish (US)
Title of host publication6th Symposium on Multidisciplinary Analysis and Optimization
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages891-901
Number of pages11
StatePublished - 1996
Externally publishedYes
Event6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996 - Bellevue, United States
Duration: Sep 4 1996Sep 6 1996

Other

Other6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996
CountryUnited States
CityBellevue
Period9/4/969/6/96

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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  • Cite this

    Kim, Y., Kum, D., & Nam, C. (1996). Simultaneous optimization of structural/control design utilizing eigenstructure assignment scheme. In 6th Symposium on Multidisciplinary Analysis and Optimization (pp. 891-901). American Institute of Aeronautics and Astronautics Inc, AIAA.