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Proceedings Paper

Design of smart structures with bounded controls
Author(s): Narendra S. Khot; Duane E. Veley; Alexander A. Bolonkin
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Paper Abstract

This paper describes an approach for designing a structure-control system based on the linear quadratic regulator which suppresses vibrations in structures. Bounds are placed on the control forces to simulate real actuators. The structure and control system are optimized with an objective function of the total weight of the structure and the control devices. The design variables are the bounds (which are proportional to the weight of the control devices) on each control force and the cross-sectional areas of the structural elements. A constraints are placed on the time required to reduce the energy of the vibration to 5% of its initial value, structural frequencies and upper and lower bounds on the design variables. As an example to illustrate the application of an approach, a wing box idealized by rod elements is used. The actuators and sensors are collocated and assumed to be embedded in structural elements.

Paper Details

Date Published: 31 May 1996
PDF: 10 pages
Proc. SPIE 2715, Smart Structures and Materials 1996: Mathematics and Control in Smart Structures, (31 May 1996); doi: 10.1117/12.240796
Show Author Affiliations
Narendra S. Khot, Air Force Wright Lab. (United States)
Duane E. Veley, Air Force Wright Lab. (United States)
Alexander A. Bolonkin, Air Force Wright Lab. (United States)

Published in SPIE Proceedings Vol. 2715:
Smart Structures and Materials 1996: Mathematics and Control in Smart Structures
Vasundara V. Varadan; Jagdish Chandra, Editor(s)

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