Journal ArticleDOI
The application of genetic algorithms for shape control with piezoelectric patches—an experimental comparison
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TLDR
In this article, a finite element model based on Mindlin plate theory was used to characterize the behaviour of the structure and the actuators. But the authors focused on the development of an efficient and general methodology, based on genetic algorithms, for the determination of the optimal actuation voltages needed to apply to the piezoelectric actuators in such a way that a pre-defined shape of a structure is achieved.Abstract:
The problem of shape control and correction of small displacements in composite structures using piezoelectric actuators glued or embedded was addressed. A finite element model based on Mindlin plate theory was used to characterize the behaviour of the structure and the one of the actuators. Emphasis was put on the development of an efficient and general methodology, based on genetic algorithms, for the determination of the optimal actuation voltages needed to apply to the piezoelectric actuators in such a way that a pre-defined shape of the structure is achieved. The model was investigated numerically and verified experimentally. Measurements were carried out using electronic speckle pattern interferometry. Good agreement was found between simulation results and the optically measured values.read more
Citations
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Journal ArticleDOI
Slewing and vibration control of a single-link flexible manipulator by positive position feedback (PPF)
TL;DR: In this article, positive position feedback (PPF) is applied to the PZT actuators for suppressing multi-mode vibrations while slewing the single-link flexible manipulator.
BookDOI
Variants of Evolutionary Algorithms for Real-World Applications
TL;DR: Variants of Evolutionary Algorithms for Real-World Applications aims to promote the practitioners view on EAs by providing a comprehensive discussion of how EAs can be adapted to the requirements of various applications in the real-world domains.
Journal ArticleDOI
Adaptive fuzzy fitness granulation for evolutionary optimization
TL;DR: In this paper, an adaptive fuzzy similarity analysis was proposed to reduce the number of fitness evaluations in hardware design problems, where an individual's fitness is only computed if it has insufficient similarity to a pool of fuzzy granules whose fitness has already been computed, then that individual is added to the pool as the core of a new fuzzy granule.
Journal ArticleDOI
Actuator Location and Voltages Optimization for Shape Control of Smart Beams Using Genetic Algorithms
TL;DR: In this paper, a finite element model based on Timoshenko beam theory is developed to characterize the behavior of the structure and the actuators, and a hybrid scheme is presented to calculate the optimal locations and optimal values of voltages, applied to the piezoelectric actuators glued in the structure, which minimize the error between the achieved and the desired shape.
References
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Book
Genetic algorithms in search, optimization, and machine learning
TL;DR: In this article, the authors present the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields, including computer programming and mathematics.
Genetic algorithms in search, optimization and machine learning
TL;DR: This book brings together the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields.
Journal ArticleDOI
Finite Element Modeling of Piezoelectric Sensors and Actuators
Woo-Seok Hwang,Hyunchul Park +1 more
TL;DR: In this article, a finite element formulation for vibration control of a laminated plate with piezoelectric sensors/actuators is presented, and the static responses of a bimorph beam are calculated.
Journal ArticleDOI
Shape Control of Composite Plates and Shells with Embedded Actuators. I. Voltages Specified
TL;DR: In this article, the changes in shapes of fiber-reinforced composite beams, plates, and shells affected by embedded piezoelectric actuators were investigated, and an analytical method was developed which can be used to calculate the change in shapes for specified applied voltages to the actuators.