Optimal locations and gains of sensors and actuators for feedback control

K. Xu, P. Warnitchai, T. Igusa

Research output: Contribution to journalConference articlepeer-review


The purpose of this paper is to present a new and efficient method for optimal design of placement and gains of actuators and sensors in output feedback control systems. The method extends the method developed by Levine and Athans by solving for optimal placement. The method also enhances the nonlinear programming approach developed by Schulz and Heimbold with the use of analytical expressions for the gradients of the performance function. The method is efficient and can handle a large number of optimization variables. Several numerical studies were performed for a two-dimensional structure. Multiple local minima for the performance function are possible for the optimal placement problem, and randomly generated initial values for the optimization variables were used to obtain a set of solutions. In all cases, even with 100 optimization variables, convergence was rapid.

Original languageEnglish (US)
Pages (from-to)3137-3145
Number of pages9
JournalCollection of Technical Papers - AIAA/ASME Structures, Structural Dynamics and Materials Conference
Issue numberpt 6
StatePublished - Jan 1 1993
Externally publishedYes
Event34th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - La Jolla, CA, USA
Duration: Apr 19 1993Apr 22 1993

ASJC Scopus subject areas

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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