Modeling and Control of Flexible Structures.

1986 ◽  
Author(s):  
W. H. Bennett ◽  
G. L. Blankenship ◽  
H. G. Kwatny
Keyword(s):  
Flexible Structures ◽  
Modeling And Control ◽  
And Control

Distributed Parameter-Dependent Modeling and Control of Flexible Structures

2004 ◽  
Vol 127 (2) ◽  
pp. 230-239 ◽  
Author(s):  
Fen Wu ◽  
Suat E. Yildizoglu
Keyword(s):  
Optimization Problems ◽  
Flexible Structures ◽  
Synthesis Condition ◽  
Distributed Model ◽  
Linear Matrix ◽  
Distributed Parameter ◽  
Modeling And Control ◽  
L2 Norm ◽  
And Control ◽  
Parameter Dependent

In this paper, distributed parameter-dependent modeling and control approaches are proposed for flexible structures. The distributed model is motivated from distributed control design, which is advantageous in reducing control implementation cost and increasing control system reliability. This modeling approach mainly relies on a central finite difference scheme to capture the distributed nature of the flexible system. Based on the proposed distributed model, a sufficient synthesis condition for the design of a distributed output-feedback controller is presented using induced L2 norm as the performance criterion. The controller synthesis condition is formulated as linear matrix inequalities, which are convex optimization problems and can be solved efficiently using interior-point algorithms. The distributed controller inherits the same structure as the plant, which results in a localized control architecture and a simple implementation scheme. These modeling and control approaches are demonstrated on a non-uniform cantilever beam problem through simulation studies.

scholarly journals Modeling and Control of Noncollocated Flexible Structures

1998 ◽  
Vol 31 (27) ◽  
pp. 153-158
Author(s):  
Natalya Raskin ◽  
Yoram Halevi
Keyword(s):  
Flexible Structures ◽  
Modeling And Control ◽  
And Control

Modeling, Control, and Design of Flexible Structures: A Survey

1990 ◽  
Vol 43 (5) ◽  
pp. 99-117 ◽  
Author(s):  
S. S. Rao ◽  
T. S. Pan ◽  
V. B. Venkayya
Keyword(s):  
Research Work ◽  
Flexible Structures ◽  
Space Applications ◽  
Location Selection ◽  
Modeling And Control ◽  
Thermal Transients ◽  
Large Structures ◽  
Effective Operation ◽  
And Control ◽  
Dynamic Excitations

Large structures used in space applications, are made flexible to reduce the high cost of lifting mass to orbit. These highly flexible structures will inevitably be vulnerable to dynamic excitations caused by the slewing/pointing maneuvers, thermal transients, operations of on-board coolers and generators, etc. Thus the aspects of modeling and control become extremely important for the safe and effective operation of large flexible structures (LFS’s). The theoretical, computational, and practical methodologies developed during the last decade along with the latest trends in this area are described. The research work addressing the aspects of model reduction, passive and active control, hierarchical/decentralized control, integrated structural and control design, optimal design, and sensor/actuator location selection problem for large flexible structures is discussed.

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