Unified Optimization of Structures and Controllers

  • J. L. Junkins
  • D. W. Rew
Part of the Springer Series in Computational Mechanics book series (SSCMECH)

Abstract

Given a differential equation model for a dynamical system, representing for example, a flexible structure, associated sensors and actuators, and a nominally stabilizing (optimal in some sense) feedback control law, a fundamental question is the following: will the feedback control law stabilize and near-optimally control the actual system? Of course, there are many interesting and significant issues raised by this question. The modeling process is always imperfect, among the several important sources of error are the following: (i) ignorance of the actual mass, stiffness, and energy dissipation properties, as well as boundary conditions and geometric parameters, (ii) discretization and truncation errors associated with representing a continuous system in terms of a finite number of degrees of freedom, (iii) neglect of nonlinearities, (iv) ignorance of external disturbances, and (v) poorly modeled sensors and actuators.

Keywords

Covariance Expense Resid Balas 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • J. L. Junkins
    • 1
  • D. W. Rew
    • 1
  1. 1.Texas A&M UniversityUSA

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