79th International Conference on VIBROENGINEERING is held in Kaunas, Lithuania — the hundredth anniversary of the birth of Academician Kazimieras Ragulskis, whose work laid the foundations of vibration engineering in Lithuania and shaped the field internationally.
The conference follows the established Vibroengineering format: peer-reviewed contributions, keynote lectures from invited scientists drawn from the journal's editorial board and the wider community, and a single full day of presentations followed by a commemorative gala dinner. Accepted contributions are published in Vibroengineering Procedia, indexed in Scopus, EI Compendex, Gale Cengage, Google Scholar and EBSCO.
This edition carries an additional purpose: to gather, in one room, the colleagues, students, and intellectual successors of a man who spent his life on the mechanics of motion — and to look forward, through a new award for young researchers carrying his name.
Keynote speakers
Arminas Ragauskas
Kaunas University of Technology, CEO of ScienceForBrain, Lithuania
Miguel A. F. Sanjuan
Royal Academy of Sciences of Spain; University Rey Juan Carlos, Spain
Keynote speaker
Arminas Ragauskas
Kaunas University of Technology, CEO of ScienceForBrain, Lithuania
Title of keynote speech
A Guiding Star in Science: From Vibroengineering to Global Industry and Brain Protection
Prof. Ragauskas will reflect on how the scientific ideas and foundations of Kazimieras Ragulskis and the Lithuanian school of vibroengineering helped shape a journey from vibroengineering to globally recognized technologies and brain protection.
Prof. Ragauskas is known for pioneering non-invasive brain monitoring technologies, including methods for measuring intracranial pressure without invasive procedures. His scientific work has resulted in numerous international patents, more than 130 publications, and thousands of citations worldwide. In 2016, he became the first Lithuanian scientist to be named a finalist for the European Inventor Award.
Miguel A. F. Sanjuan
Royal Academy of Sciences of Spain; University Rey Juan Carlos, Spain
Title of keynote speech
Vibrational Resonance in Vibroengineering
Over the past two decades, vibrational resonance has emerged as an important phenomenon in nonlinear dynamics, with increasing relevance to engineering applications. It describes the amplification of a weak low-frequency signal through the constructive interaction between nonlinear dynamics and an auxiliary high-frequency excitation. In this talk, we briefly introduce the basic mechanism of vibrational resonance using the Duffing oscillator as a paradigmatic model, showing how fast forcing can modify the effective slow dynamics and enhance the system response. We then connect these ideas with nonlinear mechanical systems, where the controlled use of vibrations may improve weak-signal detection and enhance characteristic dynamical responses. Particular attention is given to vibration-based sensing and fault diagnosis, where weak signatures can otherwise be difficult to identify. These examples illustrate how vibrational resonance provides a natural bridge between fundamental nonlinear dynamics and problems of practical interest in mechanical engineering and vibroengineering.
Nonlinear Dynamics, Chaos and Complex Systems Group, Universidad Rey Juan Carlos, Tulipán s/n, 28933 Móstoles, Madrid, Spain
Royal Academy of Sciences of Spain, Valverde 22, 28004 Madrid, Spain
Conference Chairs
Vytautas Ostaševičius
Kaunas University of Technology, Lithuania
Gangbing Song
Department of Mechanical Engineering, University of Houston, United States
Conference Program
Registration & welcome coffee
Thursday, October 15 - KTU Aula Magna
08:30-09:00
Registration & welcome coffee
Opening & commemorative tribute
Thursday, October 15 - KTU Aula Magna
09:00-09:05
Welcoming speech
Eugenijus Valatka (Kaunas University of Technology, Lithuania)
09:05-09:10
Welcoming Speech
Saulius Margis (Mayor of Pakruojis District Municipality, Lithuania)
Memorial session — "Vibromechanika"
Thursday, October 15 - KTU Aula Magna
09:10-09:25
A Man Who Shaped an Era
Vytautas Ostaševičius (Kaunas University of Technology, Lithuania)
09:25-09:35
Vibrotechnika in Many Colors: Memories of a Remarkable Era
Mečislovas Rondomanskas (Honorary President of the Kaunas Chamber of Commerce, Industry and Crafts, Lithuania)
09:35-09:45
The Holographic Interferometry Laboratory: The Vision of Academician Kazimieras Ragulskis and Its Evolution
Arvydas Palevičius (Kaunas University of Technology, Lithuania)
09:45-09:55
Journal of Vibroengineering: history and future
Minvydas Ragulskis (Kaunas University of Technology, Lithuania)
09:55-10:05
Extrica “What’s beyond”
Mangirdas Ragulskis (Extrica, Lithuania)
10:05-10:15
Ahead of His Time: Kazimieras Ragulskis and the Art of Scientific Leadership
Kazimieras Rimeikis (Member of the Kaunas City Council, Lithuania)
10:15-10:30
A Guiding Star in Science: From Vibroengineering to Global Industry and Brain Protection
Arminas Ragauskas (Kaunas University of Technology, CEO of ScienceForBrain, Lithuania)
Keynote lectures
Thursday, October 15 - KTU Aula Magna
10:30-10:45
Listening to the Whisper of Machines: Vibroengineering and Vibroacoustic Diagnostics
Rafał Burdzik (Silesian University of Technology, Poland)
10:45-10:55
The History of the Vibroengineering School Founded by Prof. Volodymyr Povidailo at Lviv Polytechnic University: Dedicated to the 100th Anniversary of Professors Ragulskis and Povidailo
Vitaliy Korendiy (Lviv Polytechnic National University, Ukraine)
10:55-11:05
Precision vibromechanics: scientific foundations, key advancements, and future directions
Kamolxon Karimov (Tashkent State Technical University, Uzbekistan)
11:05-11:15
Ultrasonic NDT/NDE for Early Detection of Structural Defects in Energy Infrastructure: Challenges and Opportunities
Renaldas Raišutis (Kaunas University of Technology, Lithuania)
Coffee break
Thursday, October 15 - KTU Aula Magna
11:15-11:40
Coffee break
Poster session
Thursday, October 15 - KTU Aula Magna
11:15
At the Forefront of Innovation
Vytautas Šiaudytis (President of the Lithuanian Amateur Arts Association "Branduma", Vice-Chairman of the Lithuanian Union of Independent Writers, Responsible Editor of the newspaper “Gintaro gimtinė”, Lithuania)
11:15
The method of two small parameters for investigating mechanisms with a vibrating base in the works of K. M. Ragulskis and his researches
Genovaite Zaksiene
11:15
Algebraic modelling of bounded integer sequences
Mantas Landauskas (Department of Mathematical Modeling, Kaunas University Of Technology, Lithuania)
11:15
Investigation of vibrations of contacting elements using moiré method
Jurate Ragulskiene (Department Of Mathematical Modelling, Faculty Of Mathematics And Natural Sciences, Kaunas University Of Technology, Lithuania)
11:15
Fractional-order asymmetry as a regulator of neuronal entrainment in the FitzHugh-Nagumo model
Inga Telksniene (Department Of Mathematical Modelling, Kaunas University Of Technology, Lithuania)
11:15
Mapping Arnold tongues of divergence in fractional matrix dynamics
Ugnė Orinaitė (Research Group for Nonlinear Systems, Kaunas University of Technology, Lithuania)
11:15
H-rank based impulsive stabilization algorithm for the fractional difference logistic map
Ernestas Uzdila (Department Of Mathematical Modelling, Kaunas University Of Technology, Lithuania)
11:15
Hierarchical Arnold tongues in the Caputo fractional standard map
Rasa Smidtaite (Research Group For Nonlinear Systems, Kaunas University Of Technology, Lithuania)
11:15
Approximation of fractional differential equations via integer order ordinary differential equations
Tadas Telksnys (Department of Mathematical Modeling, Kaunas University Of Technology, Lithuania)
11:15
Origin and development of vibrotechnologies for the aviation industry at the Lviv School named after Volodymyr Povidailo
Oleksii Lanets (Department Of Aviation And Manufacturing Engineering, Lviv Polytechnic National University, Ukraine)
11:15
From time series to reconstructed dynamics: non-uniform embedding and its applications
Kristina Poskuviene (Department of Mathematical Modelling, Kaunas University of Technology, Lithuania)
11:15
Speed and torque optimization of a crank-driven wheeled robot in non-impact and vibro-impact regimes
Vitaliy Korendiy (Department of Technical Mechanics and Engineering Graphics, Lviv Polytechnic National University, Ukraine)
11:15
The heart as a complex system: insights from nonlinear dynamics in ECG analysis
Vaiva Andriuskeviciene (Department Of Mathematical Modelling, Kaunas University Of Technology, Lithuania)
11:15
Dynamic mechanical and interfacial behavior of PLA/PEG/flax fiber biocomposites for vibration resistant orthopedic fixation plates
Muhammad Imran (Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Lithuania)
11:15
The relationship between the local Earth magnetic field and acute myocardial infarction
Darius Petronaitis (Department of Applied Mathematics, Kaunas University Of Technology, Lithuania)
11:15
Analysis of vibrational systems using operator method
Zenonas Navickas (Research Group For Nonlinear Systems, Kaunas University Of Technology, Lithuania)
11:15
From pneumatic vibrotransducers to graphic technology engineering. KTU research 1974-2026
Edmundas Kibirkštis (Department Of Production Engineering, Kaunas University Of Technology, Lithuania)
11:15
Advanced composite hydrogen storage tanks: structural integrity, reliability and future research perspectives
Sumedh Somashekhar Rajavamshi (Department Of Mechanical Engineering, Kaunas Technological University, Lithuania)
11:15
Calibrated Electrochemical Impedance Spectroscopy and Time-Domain Measurements of a 7 kWh Automotive Lithium-Ion Battery Module with 396 Cylindrical Cells
Mykolas Ragulskis (Keysight Laboratories, Keysight Technologies Austria GmbH, Austria)
11:15
Vibrational stimulation of the bovine udder
Algimantas Bubulis (Institute Of Mechatronics, Kaunas University Of Technology, Lithuania)
11:15
Machine learning-based design optimization of a microfluidic micromixer for enhanced mixing performance
Muhammad Waqas (Faculty of Mechanical Engineering and Design, Kaunas University Of Technology, Lithuania)
11:15
Speed and torque optimization of a two-module vibration-driven system with unbalanced rotors
Vitaliy Korendiy (Department of Technical Mechanics and Engineering Graphics, Lviv Polytechnic National University, Ukraine)
11:15
From Vibrotechnika to digital twins: engineering mathematics at KTU
Violeta Kravčenkienė (Faculty of Mathematics and Natural Sciences, Kaunas University of Technology, Lithuania)
11:15
Complexity matching between Schumann resonances and milk yield in dairy cows: A potential indicator of bioenergetic interaction
Rūta Šveistienė (Animal Science Institute, Lithuanian University Of Health Sciences, Lithuania)
11:15
Optimal implementation of dynamic visual cryptography on digital displays
Loreta Saunorienė (Department of Mathematical Modelling, Kaunas University of Technology, Lithuania)
11:15
DCT-based fragmentary smoothness for fast vibro-acoustic signal comparison
Gintarė Vaidelienė (Department of Applied Mathematics, Faculty of Mathematics and Natural Sciences, Kaunas University of Technology, Lithuania)
11:15
Numerical investigation of a mitochondria-inspired passive micromixer for enhanced mixing
Muhammad Ali Hashmi (Department of Mechanical Engineering, Faculty of Mechanical Engineering and Design, Kaunas University Of Technology, Lithuania)
11:15
Blockchain, Internet of Things (IoT), Cryptocurrency, Tokens and Business Value Chain
Eligijus Sakalauskas (Department of Applied Mathematics, Kaunas University Of Technology, Lithuania)
11:15
Color recurrence plots from uniform delay embeddings for bearing degradation prognostics
Rita Baublienė (Department Of Mathematical Modelling, Kaunas University Of Technology, Lithuania)
11:15
Mobile robots with semantic risk-aware navigation
Tadas Rasimavičius (Department of Mechatronics, Robotics, and Digital Manufacturing, Vilnius Gediminas Technical University, Lithuania)
Keynote lectures (continued)
Thursday, October 15 - KTU Aula Magna
11:40-11:50
Energy, Frequencies, Vibrations - this is Medicine
Alfonsas Vainoras (Lithuanian University of Health Sciences, Lithuania)
11:50-12:00
Integrating complex systems theory into the testing and management of high-performance training
Jonas Poderys (Lithuanian Sports University, Lithuania)
12:00-12:10
Physical Behaviour Models Based on High Level Computational Technologies
Rimantas Barauskas (Kaunas University of Technolog, Lithuania)
12:10-12:20
Bridging the Gap: Translating Defence Needs into R&D Innovation
Andrius Vilkauskas (Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Lithuania)
12:20-12:30
Pressure Sensors: New Approach Hydrogel Materials
Vytautas Bučinskas (Vilnius Gediminas Technical University, Lithuania)
12:30-12:40
Non-uniform Embedding: Theory and Applications
Minvydas Ragulskis (Kaunas University of Technology, Lithuania)
12:40-12:50
Vibrational Resonance in Vibroengineering
Miguel A. F. Sanjuan (Royal Academy of Sciences of Spain; University Rey Juan Carlos, Spain)
12:50-13:00
Carrying Forward Academic Friendship and Promoting Synergy in Vibration Engineering and Cross-disciplinary Science
Chen Lu (Beihang University, Beijing, China; Hangzhou International Innovation Institute of Beihang University, Hangzhou, China, China)
Lunch
Thursday, October 15
13:00-14:00
Lunch
Contributed technical session
Thursday, October 15 - KTU Aula Magna
14:00-14:10
Numerical investigation of droplet deformation in contraction nozzles containing shear-thinning fluids
Ahmad Baniabedalruhman (Department Of Mathematics, Yarmouk University, Jordan)
14:10-14:20
Advanced membrane filtration enhanced by acoustic flow for water purification
Giedrius Janušas (Department of Mechanical Engineering, Kaunas University Of Technology, Lithuania)
14:20-14:30
Dynamic visual cryptography in ophthalmology: potential for testing visual temporal integration
Arvydas Gelžinis (Ophthalmology Department, Lithuanian University Of Health Sciences, Lithuania)
14:30-14:40
Mathematical modeling of physical processes of the vehicle hydraulic braking system
Marijonas Bogdevičius (Department Mobile Mechinery and Railway Transport, Vilnius Gediminas Technical University, Lithuania)
14:40-14:50
Ultrasound and Vibrations in Modern Medicine
Vincentas Veikutis (Lithuanian University of Health Sciences, Lithuania)
14:50-15:00
Resonance beyond mechanics: From Kazimieras Ragulskis’ Vibroengineering School to Financial Saturation Theory
Stasys Girdzijauskas (Vilnius University, Lithuania)
15:00-15:10
Working process technology for the replacement of continuous welded rails
Ulugbek Ergashev (Department of Railway Engineering, Tashkent State Transport University, Uzbekistan)
15:10-15:20
Detection and analysis of acoustic characteristics for loose bolts on transmission towers
Ma Jiangang (State Grid (Xi’an) Environmental Technology Center Co., Ltd., China)
15:20-15:30
Problems related to mathematical modeling of electromagnetic vibrators
Merab Chelidze (Department Of Dynamics Of Machines, R.Dvali Institute Mechanics Of Machines, Georgia)
Inauguration Ceremony
Thursday, October 15 - KTU Aula Magna
Panel discussion Moderated by Minvydas Ragulskis (KTU), Gintautas Dzemyda (LMA), Vytautas Ostaševičius (KTU)
15:30-15:45
The Future of Vibroengineering
15:45-16:00
Inauguration of the Academician Kazimieras Ragulskis Prize for Young Researchers (by Extrica and Lithuanian Academy of Sciences)
Museum Opening Ceremony
Thursday, October 15 - Studentų 56 - 107 kambarys, KTU Miestelis
16:00-16:30
Transport to KTU Faculty of Mechanical Engineering
16:30-17:00
Vibrotechnica Museum Opening Ceremony
Commemorative gala dinner
Thursday, October 15 - Café Professor (K. Baršausko g. 59, Kaunas)
19:00-22:00
Commemorative gala dinner
Tour day to Ukrinai
Friday, October 16
09:00-11:30
Departure
11:30-16:00
Klovainiai: Unveiling of the Commemorative Plaque and at the Former Primary School
16:00
Ukrinai: Holy Mass at the Cemetery
Fees
Registration type
Regular Pricing
One Author's registration fee
Admission to the Conference, paper publication in Vibroengineering Procedia, and Gala dinner
400 EUR
Participant’s Registration
Admission to the Conference, and Gala dinner
100 EUR
Listener’s Registration
Admission to the Conference
FREE
Publication in Vibroengineering Procedia, Conference materials, Gala dinner.
Sponsors and Partners
Conference in Kaunas, Lithuania was organized by Extrica with the partnership of Lviv Polytechnic National University.
Kaunas University of Technology had its beginning on 16 February 1922, when the University of Lithuania and its technical faculties were established. The development of Lithuanian scientific ideas continued in the first Lithuanian independent technical school of higher education (in 1950–1990 titled Kaunas Polytechnic Institute (KPI)). It was famous for the ultrasound and vibrotechnics laboratories, and scientific research of textiles. In 1990 KTU regained its status of the university and took a path of rapid reforms of studies and research. The University continues to pursue sustainable partnership of science, business and industry, develops and implements new ideas, innovations and inventions.
The Lithuanian Academy of Sciences was founded on January 16, 1941, and operates under its Charter ratified by the Seimas of the Republic of Lithuania. It brings together distinguished Lithuanian and foreign scientists whose academic interests are related to Lithuania. The Academy serves as an independent expert and consultant to the Seimas, the Government, and its agencies on various issues, including research, higher education, culture, social development, economy, environmental protection, health care, and technology. Additionally, the Academy collaborates with 26 foreign academies and research centers, and it oversees the Wróblewski Library.
The Research Council of Lithuania (RCL) is the national institution responsible for implementing Lithuania’s science and studies policy. RCL contributes to the dissemination of information about this initiative but is not involved in its organisation.
