Integrated structural design and vibration suppression using independent modal space control
Abstract
The integrated design of a structure and its control system is treated as a multiobjective optimization problem. Structural mass and a quadratic performance index constitute the vector objective function. The closedloop performance index is taken as the time integral of the Hamiltonian. Constraints on natural frequencies, closedloop damping, and actuator forces are also considered. Derivatives of the objective and constraint functions with respect to structural and control design variables are derived for a finite element beam model of the structure and constant feedback gains determined by independent modal space control. Pareto optimal designs generated for a simple beam demonstrate the benefit of solving the integrated structural and control optimization problem.
 Publication:

AIAA Journal
 Pub Date:
 October 1994
 DOI:
 10.2514/3.12251
 Bibcode:
 1994AIAAJ..32.2053C
 Keywords:

 Feedback Control;
 Finite Element Method;
 Hamiltonian Functions;
 Structural Design;
 Structural Vibration;
 Vibration Damping;
 Actuators;
 Beams (Supports);
 Design Analysis;
 Frequencies;
 Mathematical Models;
 Structural Mechanics