Projeto de controladores robustos para aplicações em estruturas inteligentes utilizando desigualdades matriciais lineares
21 Feb 2005-
About: The article was published on 2005-02-21 and is currently open access. It has received 3 citations till now.
Citations
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01 Dec 2006
TL;DR: In this paper, the authors proposed a method to solve the problem of the lack of a suitable training set for the authors of this paper.http://www.unespe.edu.br/
Abstract: Department of Mechanical Engineering Universidade Estadual Paulista - UNESP, Av. Brasil, No 56, Centro, Ilha Solteira, SP, 15385000
5 citations
Cites background from "Projeto de controladores robustos p..."
...…damages (Gawronski and Sawicki, 2000), reduction of models (Gawronski and Juang, 1990; Assunção and Teixeira, 2001; Mahmoud et al., 2002), control (Mustafa and Glover, 1991; Moreira, 1998; Burl, 1999) and positioning of sensors and actuators (Gawronski, 1998; Panossian et al., 1998; Silva, 2005)....
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01 Dec 2006
TL;DR: In this paper, the authors proposed a method to solve the problem of the non-cooperative problem in Mechanical Engineering at the Universidade Estadual Paulista (UNESP), Av. Brasil, No 56, Centro Centro, Ilha Solteira, SP 15385000
Abstract: Department of Mechanical Engineering Universidade Estadual Paulista (UNESP), Av. Brasil, No 56, Centro, Ilha Solteira, SP, 15385000
Cites background from "Projeto de controladores robustos p..."
..., 2002), control (Mustafa and Glover, 1991; Moreira, 1998; Burl, 1999; Cerna, 2001) and positioning of sensors and actuators (Gawronski, 1998; Panossian et al., 1998; Silva, 2005)....
[...]
...…and Sawicki, 2000), reduction of models (Gawronski and Juang, 1990; Assunção and Teixeira, 2001; Mahmoud et al., 2002), control (Mustafa and Glover, 1991; Moreira, 1998; Burl, 1999; Cerna, 2001) and positioning of sensors and actuators (Gawronski, 1998; Panossian et al., 1998; Silva, 2005)....
[...]
01 Dec 2008
TL;DR: In this article, the authors proposed a method to solve the problem of the lack of resources in the field of Mechanical Engineering at UNESP -Ilha Solteira, Av. Brasil Centro, 56, 55, Ilha Soltaira, Sao Paulo, 15385-000
Abstract: Department of Mechanical Engineering UNESP - Ilha Solteira, Av. Brasil Centro, 56, Ilha Solteira, Sao Paulo, 15385-000
References
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Book•
01 Jan 1970
TL;DR: This comprehensive treatment of the analysis and design of continuous-time control systems provides a gradual development of control theory and shows how to solve all computational problems with MATLAB.
Abstract: From the Publisher:
This comprehensive treatment of the analysis and design of continuous-time control systems provides a gradual development of control theoryand shows how to solve all computational problems with MATLAB. It avoids highly mathematical arguments, and features an abundance of examples and worked problems throughout the book. Chapter topics include the Laplace transform; mathematical modeling of mechanical systems, electrical systems, fluid systems, and thermal systems; transient and steady-state-response analyses, root-locus analysis and control systems design by the root-locus method; frequency-response analysis and control systems design by the frequency-response; two-degrees-of-freedom control; state space analysis of control systems and design of control systems in state space.
6,634 citations
Book•
01 Jan 1982
TL;DR: Elements finis Reference Record created on 2004-09-07, modified on 2016-08-08.
Abstract: Keywords: Methode des elements finis ; Mathematique ; Elements finis Reference Record created on 2004-09-07, modified on 2016-08-08
5,049 citations
TL;DR: In this paper, the continuous and discrete-time H∞ control problems are solved via elementary manipulations on linear matrix inequalities (LMI), and two interesting new features emerge through this approach: solvability conditions valid for both regular and singular problems, and an LMI-based parametrization of all H ∞-suboptimal controllers, including reduced-order controllers.
Abstract: The continuous- and discrete-time H∞ control problems are solved via elementary manipulations on linear matrix inequalities (LMI). Two interesting new features emerge through this approach: solvability conditions valid for both regular and singular problems, and an LMI-based parametrization of all H∞-suboptimal controllers, including reduced-order controllers.
The solvability conditions involve Riccati inequalities rather than the usual indefinite Riccati equations. Alternatively, these conditions can be expressed as a system of three LMIs. Efficient convex optimization techniques are available to solve this system. Moreover, its solutions parametrize the set of H∞ controllers and bear important connections with the controller order and the closed-loop Lyapunov functions.
Thanks to such connections, the LMI-based characterization of H∞ controllers opens new perspectives for the refinement of H∞ design. Applications to cancellation-free design and controller order reduction are discussed and illustrated by examples.
3,200 citations
TL;DR: In this paper, a scaling analysis is performed to demonstrate that the effectiveness of actuators is independent of the size of the structure and evaluate various piezoelectric materials based on their effectiveness in transmitting strain to the substructure.
Abstract: This work presents the analytic and experimental development of piezoelectric actuators as elements of intelligent structures, i.e., structures with highly distributed actuators, sensors, and processing networks. Static and dynamic analytic models are derived for segmented piezoelectric actuators that are either bonded to an elastic substructure or embedded in a laminated composite. These models lead to the ability to predict, a priori, the response of the structural member to a command voltage applied to the piezoelectric and give guidance as to the optimal location for actuator placement. A scaling analysis is performed to demonstrate that the effectiveness of piezoelectric actuators is independent of the size of the structure and to evaluate various piezoelectric materials based on their effectiveness in transmitting strain to the substructure. Three test specimens of cantilevered beams were constructed: an aluminum beam with surface-bonded actuators, a glass/epoxy beam with embedded actuators, and a graphite/epoxy beam with embedded actuators. The actuators were used to excite steady-state resonant vibrations in the cantilevered beams. The response of the specimens compared well with those predicted by the analytic models. Static tensile tests performed on glass/epoxy laminates indicated that the embedded actuator reduced the ultimate strength of the laminate by 20%, while not significantly affecting the global elastic modulus of the specimen.
2,719 citations