TY - CONF AU - Martinovich, Kristóf AU - Bachrathy, Dániel TI - Szimuláció alapú stabilitásvizsgálat állapotfüggő időkésésű modellekben T2 - OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 32. PY - 2024 SP - 252 EP - 257 PG - 6 UR - https://m2.mtmt.hu/api/publication/34826924 ID - 34826924 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Sanz-Calle, M. AU - Munoa, J. AU - Morelli, L. AU - Iglesias, A. AU - López, de Lacalle L.N. AU - Dombóvári, Zoltán TI - On the effect of radial engagement on the milling stability of modes perpendicular to the feed direction JF - CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY J2 - CIRP J MANUF SCI TECHNOL VL - 49 PY - 2024 SP - 111 EP - 127 PG - 17 SN - 1755-5817 DO - 10.1016/j.cirpj.2024.01.006 UR - https://m2.mtmt.hu/api/publication/34568143 ID - 34568143 N1 - Dynamics & Control, IDEKO, Arriaga industrialdea 2, Elgoibar, 20870, Spain Mechanical Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country, 3 Rafael Moreno Ave., Bilbao, 48013, Spain Department of Industrial Engineering, University of Firenze, via di Santa Marta 3, Firenze, 50139, Italy MTA-BME Lendület Machine Tool Vibration Research Group, Department of Applied Mechanics, Budapest University of Technology and Economics, Muegyetem rkp. 3, Budapest, H1111, Hungary Export Date: 9 February 2024 Correspondence Address: Sanz-Calle, M.; Dynamics & Control, Arriaga industrialdea 2, Spain; email: msanz@ideko.es Funding details: European Commission, EC Funding text 1: Special thanks to Mikel Zatarain for providing the motivation for this paper. This project (Fibremach FTI 971442) has received funding from the European Union's Horizon 2020 research and innovation programme (H2020-EU.3. - H2020-EU.2.1.). AB - This paper analytically studies the effect of radial engagement on chatter stability when the flexibility is perpendicular to the feed motion, with thin-walled part milling being the most relevant industrial case. By studying the mean directional factor and its harmonics, the superior stability of the up-milling strategy over down-milling for both Hopf and flip chatter is demonstrated. The optimal engagement for a theoretical infinite stable depth of cut Hopf is obtained, as well as the expressions for the critical depth of cut. For flip chatter, three different cutting zones with different lobe shapes can occur depending on the radial engagement. It is also shown that while flip chatter cannot be completely eliminated by tuning the radial engagement alone, an engagement can be found in up-milling that maximises stability. Finally, the findings are validated through experimental tests. © 2024 The Author(s) LA - English DB - MTMT ER - TY - JOUR AU - Allen, Lara I. AU - Molnár, Tamás Gábor AU - Dombóvári, Zoltán AU - Hogan, S. John TI - The Effects of Delay on the HKB Model of Human Motor Coordination JF - SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS J2 - SIAM J APPL DYN SYST VL - 23 PY - 2024 IS - 1 SP - 1 EP - 25 PG - 25 SN - 1536-0040 DO - 10.1137/22M1531518 UR - https://m2.mtmt.hu/api/publication/34486405 ID - 34486405 N1 - Funding Agency and Grant Number: Hungarian Academy of Sciences through its Distinguished Guest Scientist Programme Funding text: Funding: The fourth author received support from the Hungarian Academy of Sciences through its Distinguished Guest Scientist Programme. LA - English DB - MTMT ER - TY - JOUR AU - Bártfai, András AU - Vörös, Illés AU - Takács, Dénes TI - Stability analysis of a digital hierarchical steering controller of autonomous vehicles with multiple time delays JF - JOURNAL OF VIBRATION AND CONTROL J2 - J VIB CONTROL VL - 30 PY - 2024 IS - 1-2 SP - 330 EP - 341 PG - 12 SN - 1077-5463 DO - 10.1177/10775463221146624 UR - https://m2.mtmt.hu/api/publication/33555101 ID - 33555101 AB - This study investigates the lane-keeping control of autonomous vehicles with an emphasis on the digital delayed nature of the system. The vehicle dynamics are represented using a kinematic bicycle model, and a hierarchical lane-keeping controller is introduced with multiple delays in the feedback loop. An extension of the semidiscretization method is presented, in order to perform the stability analysis of the digitally controlled vehicle with multiple discrete time delays. The differences between the continuous approximation and the exact consideration of discrete time delays are highlighted. We show that in certain cases, neglecting the effects of quantization can lead to significant inaccuracies, especially when tuning the lower-level controller. The results are verified using a series of small-scale laboratory experiments. LA - English DB - MTMT ER - TY - CHAP AU - Kiss, Ádám AU - Bachrathy, Dániel ED - Kossa, Attila TI - High-density stability map – stability identification in milling by stop-and-go tool motion T2 - Book of Abstracts. 39th Danubia-Adria Symposium on Advances in Experimental Mechanics. 2023 Hungary PB - Gépipari Tudományos Egyesület (GTE) CY - Siófok SN - 9789634219279 PY - 2023 SP - 1 UR - https://m2.mtmt.hu/api/publication/34504863 ID - 34504863 LA - English DB - MTMT ER - TY - CONF AU - Bártfai, András AU - Dombóvári, Zoltán TI - Időben változó paraméterű esztergálás véges idejű stabilitás vizsgálatának numerikus szimulációs problémája T2 - XIV. Magyar Mechanikai Konferencia: Az előadások összefoglalói - online PB - Miskolci Egyetem Műszaki Mechanikai Intézet C1 - Miskolc PY - 2023 SP - 1 PG - 1 UR - https://m2.mtmt.hu/api/publication/34472991 ID - 34472991 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Bártfai, András AU - Dombóvári, Zoltán ED - Kossa, Attila TI - Demonstration of finite time stability in hardware-in-the-loop turning process with time varying parameters T2 - Book of Abstracts. 39th Danubia-Adria Symposium on Advances in Experimental Mechanics. 2023 Hungary PB - Gépipari Tudományos Egyesület (GTE) CY - Siófok SN - 9789634219279 PY - 2023 SP - 72 EP - 73 PG - 2 UR - https://m2.mtmt.hu/api/publication/34472982 ID - 34472982 LA - English DB - MTMT ER - TY - CONF AU - Gábos, Zoltán AU - Gazdagh, Zoltán Gábor AU - Dombóvári, Zoltán TI - Engineering examples for recognizing some specific types of forced nonlinear behaviour T2 - Proceedings of NVHH 2023 PY - 2023 SP - 74 EP - 78 PG - 5 UR - https://m2.mtmt.hu/api/publication/34471462 ID - 34471462 LA - English DB - MTMT ER - TY - JOUR AU - Gábos, Zoltán AU - Plakhotnik, D. AU - Dombóvári, Zoltán TI - DIGITAL GEOMETRY GENERATION OF HIGH PRECISION BROACHING TOOL CUTTING EDGES THROUGH IMAGE PROCESSING ALGORITHM JF - MM Science Journal J2 - MM Science Journal VL - 2023 PY - 2023 IS - Special Issue SP - 7014 EP - 7020 PG - 7 SN - 1803-1269 DO - 10.17973/MMSJ.2023_11_2023124 UR - https://m2.mtmt.hu/api/publication/34406972 ID - 34406972 N1 - Department of Applied Mechanics, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111, Hungary MTA-BME Lendület Machine Tool Vibration Research Group, Department of Applied Mechanics, Budapest University of Technology and Economics, Budapest, H-1521, Hungary ModuleWorks GmbH, Aachen, Germany University of Twente, Enschede, Netherlands Export Date: 30 November 2023 Correspondence Address: Gabos, Z.; Department of Applied Mechanics, Műegyetem rkp. 3, Hungary; email: zoltan.gabos@mm.bme.hu LA - English DB - MTMT ER - TY - CHAP AU - Iklódi, Zsolt AU - Gábos, Zoltán AU - Bártfai, András AU - Dombóvári, Zoltán ED - Morales-Palma, D. ED - Martinez-Donaire, A.J. ED - Borrego, M. ED - Centeno, G. ED - Vallellano, C. TI - Time domain simulation of surface topography in broaching considering tools with general cutting edge geometries and three dof parametric dynamics T2 - 10th Manufacturing Engineering Society International Conference (MESIC 2023) VL - 132 AST PB - Trans Tech Publications CY - Pfaffikon SN - 9783036414249 T3 - Advances in Science and Technology, ISSN 1662-8969 ; 132 AST. PY - 2023 SP - 3 EP - 12 PG - 10 DO - 10.4028/p-xq6Fqt UR - https://m2.mtmt.hu/api/publication/34282469 ID - 34282469 N1 - MTA-BME (Momentum) Machine Tool Vibration Research Group, Budapest University of Technology and Economics, Budapest, Hungary Department of Applied Mechanics, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111, Hungary Correspondence Address: Iklodi, Z.; MTA-BME (Momentum) Machine Tool Vibration Research Group, Hungary; email: zsolt.iklodi@mm.bme.hu LA - English DB - MTMT ER -