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Oscillators synchronization and its appilcations to engineering science

Grant number: 13/04101-6
Support type:Regular Research Grants
Duration: June 01, 2013 - May 31, 2015
Field of knowledge:Engineering - Electrical Engineering
Principal Investigator:Atila Madureira Bueno
Grantee:Atila Madureira Bueno
Home Institution: Universidade Estadual Paulista (UNESP). Campus Experimental de Sorocaba. Sorocaba , SP, Brazil

Abstract

Synchronization networks deal with the problem of synchronizing geographically dispersed oscillators or clocks, being part of countless Engineering applications, mainly in telecom systems. Specifically, synchronization networks have numerous applications in control systems, such as in servomotors angular speed control, in the Atomic Force Microscopy (AFM) problem and in active control of vibrating mechanical systems.In the AFM problem Phase-Locked Loops (PLLs) are used in order to generate the feedback signal to the AFM control system. In the Frequency-Modulated AFM (FM-AFM), the same feedback signal is used to generate topographical images of the sample.Similarly, in mechanical vibrating systems, the PLL can be used as a synthesizer by the control system, forcing the mechanical or electromechanical system to deliberately vibrate in pre-defined frequency. On the other hand, PLLs are also used for generating feedback signal for the control system, in order to build an Active Nonlinear Vibration Absorber.With the dynamically connected wireless networks grouth, such as the World-Wide-Web (WWW), complex networks topologies as the Mutually-Connected (MC) networks, regular networks, random connected networks, small-words, scale-free, and so on, are becoming an important research field. Seminal works from Watts and Strogatz - studing the USA electrical power distribution and the Caenorhabditis elegans neuronal network -, and from Barabási and Albert - investigating the WWW - had a huge impact, demonstrating the influence of the networks topology on diverse science areas, including Engineering. In the clock signal distribution problem, each node of the network is composed of a PLL that synchronizes a local oscillator to an incoming signal. The complex topology of the networks demand sophisticated control algorithms in order to assure the stability and performance. Besides, in most of the current applications, the PLLs are all digital or hybrid systems. According to the above, it is proposed as a research project : i) The development of the mathematical models of complex PLLs networks, considering digital and hybrid implementations; ii) The study of control designs in order to assure stability and performance. Similarly, as the PLLs have many applications in Control Systems, it is proposed iii) the Study of the PLLs networks to model problems such as the WWW, and biological systems, and iv) The study of applications in active nonlinear vibration control and in the AFM problem. (AU)

Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
TUSSET, ANGELO MARCELO; BUENO, ATILA MADUREIRA; MARTINS DOS SANTOS, JOAO PAULO; TSUCHIDA, MASAYOSHI; BALTHAZAR, JOSE MANOEL. A non-ideally excited pendulum controlled by SDRE technique. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 38, n. 8, p. 2459-2472, DEC 2016. Web of Science Citations: 3.
TUSSET, ANGELO MARCELO; PICCIRILLO, VINICIUS; BUENO, ATILA MADUREIRA; BALTHAZAR, JOSE MANOEL; SADO, DANUTA; PALACIOS FELIX, JORGE LUIS; LOPES REBELLO DA FONSECA, REYOLANDO MANOEL. Chaos control and sensitivity analysis of a double pendulum arm excited by an RLC circuit based nonlinear shaker. JOURNAL OF VIBRATION AND CONTROL, v. 22, n. 17, p. 3621-3637, OCT 2016. Web of Science Citations: 29.
BALTHAZAR, JOSE MANOEL; BASSINELLO, DAILHANE GRABOWSKI; TUSSET, ANGELO MARCELO; BUENO, ATILA MADUREIRA; DE PONTES JUNIOR, BENTO RODRIGUES. Nonlinear control in an electromechanical transducer with chaotic behaviour. MECCANICA, v. 49, n. 8, SI, p. 1859-1867, AUG 2014. Web of Science Citations: 19.
BALTHAZAR, JOSE MANOEL; TUSSET, ANGELO MARCELO; BUENO, ATILA MADUREIRA. TM-AFM NONLINEAR MOTION CONTROL WITH ROBUSTNESS ANALYSIS TO PARAMETRIC ERRORS IN THE CONTROL SIGNAL DETERMINATION. Journal of Theoretical and Applied Mechanics, v. 52, n. 1, p. 93-106, 2014. Web of Science Citations: 19.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.
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