Nonlinear Dynamics of Interconnected Systems Research Group
Research keywords:
· nonlinear dynamics
· percolation
· energy transfer
· particle methods
· numerical modelling of fluid flows
· energy harvesting
· renewable energy
· 1D modelling
Introduction of the Research Group
Systems of communicating components are crucial in a broad range of applications including space exploration, mobile sensor networks, teleoperated surgical robots, control of teams of vehicles, and integrated building systems. Interconnections are not only manifested by a communication channel, but by the inherent coupling of the states in the equations describing the system. The analysis of communicating dynamic components is timely and important.
Watch our 3-minute introductory video:
Achievements
- Reduced order modeling of long-span pedestrian bridges and free vibration wind tunnel test for bridge sections
- Analysis of energy transfer mechanisms in large DoF linear and nonlinear oscillation chains
- Development of novel percolation model to simulate mercury injection porosimetry in porous rock samples
- Development of a general-purpose particle-based simulation tool
- Simulation and analysis of renewable energy systems (wind and thermal)
- Modeling and control of dynamic instabilities in floating structures, such as ships, buoys and marine renewable energy devices
Publications
-Lelkes, János; Bak, Dezső Bendegúz; Kalmár-Nagy, Tamás: Vibrations and energy distribution in inhomogeneous rods with elastic and viscous boundary conditions, SCIENTIFIC REPORTS, 14(1), 2846, (2024).
-"Lelkes, János; Horváth, András Dávid; Lendvai, Bálint; Farkas, Balázs; Bak, Dezső Bendegúz; Kalmár-Nagy, Tamás: Data-driven aerodynamic models for aeroelastic simulations, JOURNAL OF SOUND AND VIBRATION, Vol. 564, 117847, 2023.
-Bak, Dezső Bendegúz; Rochlitz, Robert; Kalmár-Nagy, Tamás: Energy transfer mechanisms in binary tree-structured oscillator with nonlinear energy sinks, NONLINEAR DYNAMICS 111: 11, pp. 9875–9888 (2023).
-Lelkes, János; Davidson, Josh; Kalmár-Nagy, Tamás: Modeling of parametric resonance for heaving buoys with position-varying waterplane area, JOURNAL OF MARINE SCIENCE AND ENGINEERING, 9(11), 1162, (2021).
-Lelkes, János; Kalmár-Nagy, Tamás: Analysis of a mass-spring-relay system with periodic forcing, NONLINEAR DYNAMICS, 106 : 1, pp. 21-44, (2021).
-Kalmár-Nagy, Tamás ; Bak, Dezső Bendegúz, An intriguing analogy of Kolmogorov's scaling law in a hierarchical mass–spring–damper model, NONLINEAR DYNAMICS 95 : 4 pp. 3193-3203. , 11 p.m. (2019).
-Bak, Dezső Bendegúz; Kalmár-Nagy, Tamás: A Size-Perimeter Discrete Growth Model for Percolation Clusters, COMPLEXITY Paper: 9919333, 16 p. (2021).
-Lelkes, János; Kalmár-Nagy, Tamás: Analysis of a piecewise linear aeroelastic system with and without tuned vibration absorber, NONLINEAR DYNAMICS, 103 : 4, pp. 2998-3018, (2020)."
Journals
"Nonlinear Dynamics, Journal of Sound and Vibration, International Journal of Nonlinear Mechanics, Journal of Marine Science and Engineering, Complexity, ASME IDETC, NODYCON, ENOC"
- Please add the following new record to the Projects section:
"Bendegúz Dezső Bak, Bolyai scholarship, Investigation of energy transfer mechanisms in multi DoF oscillators equipped with nonlinear energy sinks, 3 years, Hungarian Academy of Sciences"
- Please replace the Conferences section with the following:
"Our members are recurring attendants of the following scientific conferences:
- European Nonlinear Dynamics Conference (ENOC)
- International Nonlinear Dynamics Conference (NODYCON)
- ASME International Design Engineering Technical Conferences (IDETC)
- CMFF (Conference on Modeling of Fluid Flows)"
Infrastructure
Wind tunnels, Laser Doppler Anemometry (LDA), Particle Image Velocimetry (PIV), Vibration measurements, Computational cluster