A5073153356- Chaos control and synchronization
- Nonlinear Dynamics and Pattern Formation
- Vibration Control and Rheological Fluids
- Vibration and Dynamic Analysis
- Dynamics and Control of Mechanical Systems
- Quantum chaos and dynamical systems
- Mechanical and Optical Resonators
- Innovative Energy Harvesting Technologies
- Magnetic Bearings and Levitation Dynamics
- Structural Health Monitoring Techniques
- Adaptive Control of Nonlinear Systems
- Control and Dynamics of Mobile Robots
- Force Microscopy Techniques and Applications
- Structural Engineering and Vibration Analysis
- Elasticity and Wave Propagation
- Advanced Differential Equations and Dynamical Systems
- Hydraulic and Pneumatic Systems
- Structural Analysis and Optimization
- Seismic Performance and Analysis
- Energy Harvesting in Wireless Networks
- Geophysics and Sensor Technology
- Experimental and Theoretical Physics Studies
- Composite Structure Analysis and Optimization
- Shape Memory Alloy Transformations
- stochastic dynamics and bifurcation
Universidade Estadual Paulista (Unesp)
2013-2025
Universidade Tecnológica Federal do Paraná
2018-2025
Universidade Estadual de Ponta Grossa
2022-2024
University of Lisbon
2024
Instituto de Aeronáutica e Espaço
2016-2024
Universidade de São Paulo
2003-2023
Altera (United States)
2023
Instituto Tecnológico de Aeronáutica
2015-2023
Qualcomm (United Kingdom)
2023
Lodz University of Technology
2020
Decentralized energy generation by renewable fuels is an alternative to dependency and reduction in greenhouse gas emissions, with biogas emerging as a promising option. Brazil, the second largest ethanol producer, generates several by-products production of this biofuel that could be used for production. In study, potential electricity from was evaluated. Furthermore, economic analysis conducted calculations discounted net present value (NPV), internal rate return (IRR), on investment...
This paper presents the control strategies of nonlinear vehicle suspension using a magnetorheological (MR) damper. We used two different approaches for modeling and mechanical electrical parts systems with MR First, we have formulated resolved problem in order to design linear feedback dumping force controller system. Then values functions were transformed into signals by application fuzzy logic method. The numerical simulations provided show effectiveness this method semi-active quarter-car...
In this paper the dynamical interactions of a double pendulum arm and an electromechanical shaker is investigated. The three degree freedom system coupled to RLC circuit based nonlinear through magnetic field, capacitor voltage function instantaneous electric charge. Numerical simulations show existence chaotic behavior for some regions in parameter space behaviour characterized by power spectral density Lyapunov exponents. bifurcation diagram constructed explore qualitative system. This...
This paper presents the results of investigating dynamics an economic system with chaotic behavior and a suboptimal control proposal to suppress behavior. Numerical using phase portraits, bifurcation diagrams, Lyapunov exponents, 0-1 testing confirmed hyperchaotic The also proved effectiveness control, showing errors below 1%, even in cases where design is subject parametric errors. Additionally, investigation fractional order included, demonstrating that has periodic, constant, or for...
In this paper, an application is considered of both active and passive controls, to suppression chaotic behavior a simple portal frame, under the excitation unbalanced DC motor, with limited power supply (non-ideal problem). The adopted control strategy consists two controls: nonlinear (feedforward) in order keep controlled system desirable orbit, feedback control, which may be obtained by considering state-dependent Riccati equation bringing into desired orbit using magneto rheological (MR)...
In this work, we analyze the suitability of State-Dependent Riccati Equation (SDRE) suboptimal nonlinear control formulation for implementation body-fixed hovering a spacecraft in highly environment engendered by faint force fields around single- and multi-body Near-Earth Objects (NEOs), class Small Solar System Bodies with high relevance either scientific, economic, or planetary defense-related aspects. Our results, addressing relative equilibrium points on effective potential Asteroid (16)...
In this paper, we examine the nonlinear control method based on saturation phenomenon and of systems coupled with quadratic ties applied to a shear-building portal plane frame foundation that supports an unbalanced direct current limited power supply (non-ideal system). We analyze equations motion by using averaging numerical simulation. The interaction non-ideal structure controller may lead occurrence interesting phenomena during forward passage through several resonance states systems....
The tapping mode is one of the mostly employed techniques in atomic force microscopy due to its accurate imaging quality for a wide variety surfaces. However, chaotic microcantilever motion impairs obtention images from sample In order investigate problem microscope modeled and identified range parameter's values. Additionally, attempting prevent motion, two control are implemented: optimal linear feedback time-delayed control. simulation results show feasibility chaos microscopy.