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Nonlinear Dynamics of Interconnected Systems Research Group

Dr. Tamás Kalmár-Nagy

Associate Professor

PhD

H-1111 Bertalan Lajos u. 4-6.

+3614632493

kalmar.nagy.tamas@gpk.bme.hu

Dr. Josh Davidson

Assistant Professor

Dr. Balázs Havasi-Tóth

Assistant Professor

Dr. Viktor Szente

Assistant Professor

Dr. Bendegúz Dezső Bak

Assistant Professor

János Lelkes

PhD Student

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; Davidson, Josh; Kalmár-Nagy, Tamás: Modeling of Parametric Resonance for Heaving Buoys with Position-Varying Waterplane Area, JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2021, https://www.mdpi.com/2077-1312/9/11/1162 ;
Lelkes, János; Kalmár-Nagy, Tamás: Analysis of a mass-spring-relay system with periodic forcing, NONLINEAR DYNAMICS, 2021, https://link.springer.com/article/10.1007/s11071-021-06685-9
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 Bendegüz;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, 2020, https://link.springer.com/article/10.1007/s11071-020-05725-0

Journals

Nonlinear Dynamics, Complexity, ASME IDETC, NODYCON

Infrastructure

Wind tunnels, Laser Doppler Anemometry (LDA), Particle Image Velocimetry (PIV), Vibration measurements, Computational cluster

Projects

NRDI K OTKA, Stability and Performance of Interconnected Systems: From Networked Control Systems to Fluid Dynamics, 4 years, NRDI Office, PI

Conferences

2022 ENOC, 2020 NODYCON, 2019 ASME IDETC