TY - CONF AU - Gyebrószki, Gergely AU - Csernák, Gábor TI - Tracking basin boundaries with Clustered Simple Cell Mapping method T2 - ENOC 2022: Book of abstracts PY - 2022 SP - 382345-1 EP - 382345-2 PG - 2 UR - https://m2.mtmt.hu/api/publication/33191763 ID - 33191763 LA - English DB - MTMT ER - TY - JOUR AU - Gyebrószki, Gergely AU - Csernák, Gábor AU - Milton, John G. AU - Insperger, Tamás TI - The effects of sensory quantization and control torque saturation on human balance control JF - CHAOS J2 - CHAOS VL - 31 PY - 2021 IS - 3 PG - 12 SN - 1054-1500 DO - 10.1063/5.0028197 UR - https://m2.mtmt.hu/api/publication/31926592 ID - 31926592 LA - English DB - MTMT ER - TY - JOUR AU - Beregi, Sándor AU - Takács, Dénes AU - Gyebrószki, Gergely AU - Stépán, Gábor TI - Theoretical and experimental study on the nonlinear dynamics of wheel-shimmy JF - NONLINEAR DYNAMICS J2 - NONLINEAR DYNAM VL - 4 PY - 2019 SP - 2581 EP - 2593 PG - 13 SN - 0924-090X DO - 10.1007/s11071-019-05225-w UR - https://m2.mtmt.hu/api/publication/30893747 ID - 30893747 LA - English DB - MTMT ER - TY - JOUR AU - Gyebrószki, Gergely AU - Csernák, Gábor TI - Twofold quantization in digital control: deadzone crisis and switching line collision JF - NONLINEAR DYNAMICS J2 - NONLINEAR DYNAM VL - 98 PY - 2019 IS - 2 SP - 1365 EP - 1378 PG - 14 SN - 0924-090X DO - 10.1007/s11071-019-05268-z UR - https://m2.mtmt.hu/api/publication/30858479 ID - 30858479 N1 - Cited By :2 Export Date: 19 May 2022 CODEN: NODYE Correspondence Address: Gyebrószki, G.; Department of Applied Mechanics, Müegyetem rkp 3, Hungary; email: gyebro@mm.bme.hu LA - English DB - MTMT ER - TY - JOUR AU - Gyebrószki, Gergely AU - Csernák, Gábor TI - The Hybrid Micro-chaos Map: Digitally Controlled Inverted Pendulum with Dry Friction JF - PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING J2 - PERIOD POLYTECH MECH ENG VL - 63 PY - 2019 IS - 2 SP - 148 EP - 155 PG - 7 SN - 0324-6051 DO - 10.3311/PPme.13300 UR - https://m2.mtmt.hu/api/publication/30344013 ID - 30344013 LA - English DB - MTMT ER - TY - THES AU - Gyebrószki, Gergely TI - Micro-chaos in digitally controlled mechanical systems PB - Budapesti Műszaki és Gazdaságtudományi Egyetem PY - 2018 UR - https://m2.mtmt.hu/api/publication/31349159 ID - 31349159 LA - English DB - MTMT ER - TY - JOUR AU - Gyebrószki, Gergely AU - Csernák, Gábor TI - Structures within the Quantization Noise: Micro-Chaos in Digitally Controlled Systems JF - IFAC PAPERSONLINE J2 - IFACOL VL - 51 PY - 2018 IS - 22 SP - 256 EP - 261 PG - 6 SN - 2405-8971 DO - 10.1016/j.ifacol.2018.11.551 UR - https://m2.mtmt.hu/api/publication/3410962 ID - 3410962 AB - Quantization, sampling and delay in digitally controlled systems can cause undesired oscillations (Csernák and Stépán, 2011), which – depending on the nature of the uncontrolled system – may cause issues of various importance. In many cases, these oscillations can be treated as quantization noise (Widrow and Kollár, 2008), and can be handled elegantly with the corresponding quantization theory. However, we are interested in the structure and patters of quantization in case of a digitally controlled inverted pendulum with input and output quantizers and sampling. We show the patterns of control effort in case of a simple PD control and highlight how these patterns – along with the dynamics of the controlled system – lead to attractors or periodic cycles with superimposed chaotic oscillations. LA - English DB - MTMT ER - TY - JOUR AU - Gyebrószki, Gergely AU - Bachrathy, Dániel AU - Csernák, Gábor AU - Stépán, Gábor TI - Stability of turning processes for periodic chip formation JF - ADVANCES IN MANUFACTURING J2 - ADV MANUF VL - 6 PY - 2018 IS - 3 SP - 345 EP - 353 PG - 9 SN - 2095-3127 DO - 10.1007/s40436-018-0229-6 UR - https://m2.mtmt.hu/api/publication/3398967 ID - 3398967 N1 - Funding Agency and Grant Number: European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) ERC advanced grant agreement [340889]; Hungarian Scientific Research Fund-OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [PD-112983]; Janos Bolyai Research Scholarship of the Hungarian Academy of SciencesHungarian Academy of Sciences Funding text: This research study received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) ERC advanced grant agreement (Grant No. 340889) and was supported by the Hungarian Scientific Research Fund-OTKA PD-112983 and the Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences. Department of Applied Mechanics, Budapest University of Technology and Economics, Budapest, Hungary MTA-BME Research Group on Dynamics of Machines and Vehicles, Budapest, Hungary Cited By :2 Export Date: 26 November 2019 Correspondence Address: Gyebrószki, G.; Department of Applied Mechanics, Budapest University of Technology and EconomicsHungary; email: gyebro@mm.bme.hu AB - The prediction of chatter vibration is influenced by many known complex phenomena and is uncertain. We present a new effect that can significantly change the stability properties of cutting processes. It is shown that the microscopic environment of chip formation can have a large effect on its macroscopic properties. In this work, a combined model of the surface regeneration effect and chip formation is used to predict the stability of turning processes. In a chip segmentation sub-model, the primary shear zone is described with a corresponding material model along layers together with the thermodynamic behavior. The surface regeneration is modeled by the time-delayed differential equation. Numerical simulations show that the time scale of a chip segmentation model is significantly smaller than the time scale of the turning process; therefore, averaging methods can be used. Chip segmentation can decrease the average shear force leading to decreased cutting coefficients because of the non- linear effects. A proper linearization of the equation of motion leads to an improved description of the cutting coefficients. It is shown that chip segmentation may significantly increase the stable domains in the stability charts; furthermore, by selecting proper parameters, unbounded stability domains can be reached. LA - English DB - MTMT ER - TY - CHAP AU - Gyebrószki, Gergely AU - Bachrathy, Dániel AU - Csernák, Gábor AU - Stépán, Gábor ED - Stépán, Gábor ED - Csernák, Gábor TI - Effect of periodic chip formation on the stability of turning processes T2 - Proceedings of the 9th European Nonlinear Dynamics Conference, ENOC 2017 PB - Budapest University of Technology and Economics CY - Budapest SN - 9789631291681 PY - 2017 PG - 2 UR - https://m2.mtmt.hu/api/publication/3256628 ID - 3256628 LA - English DB - MTMT ER - TY - CHAP AU - Gyebrószki, Gergely AU - Csernák, Gábor ED - Stépán, Gábor ED - Csernák, Gábor TI - Inherent control error in a multi-PD controlled double inverted pendulum T2 - Proceedings of the 9th European Nonlinear Dynamics Conference, ENOC 2017 PB - Budapest University of Technology and Economics CY - Budapest SN - 9789631291681 PY - 2017 PG - 5 UR - https://m2.mtmt.hu/api/publication/3256626 ID - 3256626 LA - English DB - MTMT ER -