Design of Reduced-Order Robust Controllers for Smart Structural Systems
Abstract
A method of designing reduced-order robust controllers for smart structural systems, which guarantees the stability and performance of the closed-loop system under various uncertainties, is presented. the uncertainties in structural systems are modeled as norm-bound unstructured uncertainty and structured parametric uncertainties in natural frequencies and damping ratios. based on the linear matrix inequalities (LMIs) and the Popov criterion, a robust multi-objective controller is designed to suppress the vibrations caused by external disturbances. the limited actuator inputs are also incorporated in the design mythologies. using LMIs, the order of the synthesized controller is reduced by a frequency-weighted model reduction method. the design procedure was experimentally tested on a multi-input and multi-output three-mass structural test article, which uses piezoelectric actuators and sensors.
Recommended Citation
P. Liu and V. S. Rao, "Design of Reduced-Order Robust Controllers for Smart Structural Systems," Journal of Guidance, Control, and Dynamics, vol. 27, no. 6, pp. 1068 - 1074, American Institute of Aeronautics and Astronautics, Jan 2004.
The definitive version is available at https://doi.org/10.2514/1.13746
Department(s)
Electrical and Computer Engineering
International Standard Serial Number (ISSN)
1533-3884; 0731-5090
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Institute of Aeronautics and Astronautics, All rights reserved.
Publication Date
01 Jan 2004
