Wojciech BATKO Prof. D.Sc. Eng. – Carpathian State University in Krosno, Poland
Title: Algebra of Decibel as a Tool for Assessment of Acoustic Hazard to the Environment – New Research Tasks
Prof. Wojciech Batko deals with the wide range of aspects of dynamics, vibroacoustics of technical systems and related issues of devices diagnostic. He is the author of over 400 publications in Poland and abroad, which include authorship or co-authorship of 12 books, 26 chapters in books, 136 articles in industry and international magazines, 10 patents and over 220 conference papers.
He was the originator and he implemented a number of research projects. As a result of these projects implementation, many innovative technical solutions have been created. They concerned the recognition of disturbances in monitoring systems, as well as the assessment of the uncertainty of acoustic control in the environment.
Prof. Batko is the creator of the mobile design – integrated station for continuous monitoring of noise, manipulator for positioning of the measuring microphone for research laboratories. He is also an originator of associated with it technology of automation of acoustic measurements.
He has developed technology and detection of the direction of sound propagation (based on a set of 3D Sound-Field microphones and own patent solutions). Using proprietary recursive algorithms and systems made in MEMS technology, he has also developed a miniature noise threats indicator. He has promoted his research area by supervising 15 doctoral dissertation
For many years Prof Batko has been a member of the Machine Building Committee of the Polish Academy of Sciences and the Acoustic Academy of the Polish Academy of Sciences as well as the Engineering Academy in Poland.
Zbigniew DĄBROWSKI Prof. D.Sc. Eng. – Warsaw University of Technology, Poland
Title: The Practical Methods of Nonlinear Analysis in Mechanical Engineering Tasks.
Prof. Zbigniew Dąbrowski, Ph. D., D. Sc., full professor of Warsaw University of Technology (WUT), born in Warsaw 1947. Since 1992 to 2017 Head of Machines Design and Exploitation Division in the Faculty of Automotive and Construction Machinery Engineering, Warsaw University of Technology. Author of more than 300 research papers, including 20 books (for example: Machine Shafts, PWN 1999 (in polish); Nonlinear Effects in Technical Diagnostics, ITE-BIP Radom 2008, under authority of Polish Academy of Science, co-authors: W. Batko, J. Kicński; Introduction to Yacht Self-Steering System Theory, ITE-BIP Radom 2005, co author W. W. Skórski; Composite Masts Vibration, ITE-BIP Radom 2007, co authors: J. Dziurdź W. W. Skórski). Co-organiser and a long-term Manager of the first modern Vibroacoustics Laboratory at WUT. Field of research: machine construction and dynamics, vibroacoustics and technical diagnostics. Long-term member (general secretary, vice president and president) of Polish Society of Technical Diagnostics. Chairman of the Vibroacoustics Section of the Acoustics Committee of the Polish Academy of Sciences. Full member of Academy Engineering in Poland.
Marian W. DOBRY D.Sc., Ph.D,, Eng. (emeritus), Poznan University of Technology, Poland
Title: Sixty-year history of the Vibration in Physical Systems Symposium
Marian Witalis DOBRY [B. Sc., M. Sc., Ph. D., D. Sc.] has studied (Applied Mechanics) and graduated from Poznan University of Technology in (Poland). His scientific activity and interests involve mechanics, dynamics of machines and biological-mechanical systems, vibroacoustics, protection of human against vibration and noise, as well as diagnostics. In recent years, he has elaborated theoretical foundations (two principles) for power distribution and energy flow in mechanical and intelligent biological-mechanical system as for example Human – Machine (tools or vehicles) Systems. The theory allows energy optimisation and energy diagnostics on all stages of objects life. Until 2017 year, the professor was the head of the Vibroacoustics and Biodynamics Systems Division and Laboratory of Dynamics and Ergonomics of Human – Technical Object – Environment Metasystem. Professor is the author of: 3 monograph, over 200 publications and 30 Polish, European and USA patents applied in vibration and energy safe impact hand-held tools – the best adapted for human. Member of societies: Polish Society of Theoretical and Applied Mechanics – Branch in Poznan, Polish Society of Technical Diagnostics, Associate Member of the Biomechanics Section of the Committee of Mechanics of the Polish Academy of Sciences – since 2011, Polish Committee for Theory of Machines and Mechanisms (expert), Commission of Ergonomics – Branch of the Polish Academy of Sciences in Poznan, Poznan Society of Friends of Sciences. Co-editor of the Journal of Vibration in Physical Systems from 2008 to 2016.
Nejc NOVAK Ph.D. Eng. – University of Maribor, Slovenia
Title: Band gaps in auxetic metamaterials
Dr. Nejc Novak is research and teaching assistant at the Faculty of Mechanical Engineering, University of Maribor, Slovenia. His research interest is in advanced computational modelling and simulations, cellular structures, auxetic cellular materials, characterisation and optimisation of cellular structures, multi-physical problems, crashworthiness, blast and ballistic loading.
Dr. Nejc Novak received the professional title Bachelor of Mechanical Engineering in 2013 and the Master of Mechanical Engineering in 2015 at the University of Maribor. In 2019, he was promoted to Doctor of Philosophy at the University of Maribor, Slovenia with thesis title “Computational simulations of auxetic cellular structures”.
Dr. Nejc Novak is an expert in complex computer modelling and simulations, high-performance calculations, modelling of fast transients in solids, machine elements construction as well as development and characterisation of cellular metamaterials. His bibliography comprises of more than 75 bibliographical units, from which is more than 10 original scientific papers published mostly in high ranked journals in the field of composites and mechanics.
He was the visiting researcher at the University of Kumamoto, Japan, at the Georgia Institute of Technology, USA, at the Beijing Institute of Technology, China, as well as at the Politecnico di Milano, Italy.
Andrzej TYLIKOWSKI Prof. D.Sc. Eng. DHC – Warsaw University of Technology, Poland
Title: New Aspects of Stochastic Dynamics
An overview of basic ideas, methods and results achieved in stochastic vibration analysis for physical and mechanical systems is given. The analysis is confined to dynamic responses and stabilities of discrete and continuous systems. The study of dynamic systems has naturaly split into two branches. These are, different kinds of stability for uniform equations (parametric vibration) and bounds on solutions or estimations of nonuniform dynamic equations (forced vibration). The inner damping forces deterministic or stochastic are of great importance in analysis of parametric vibration. Present research areas include widening the class of nonuniform equation of motion on dynamic equations with fractional partial derivatives. The physically realized random processes are taken into account e.g. the impulsive loading due to impacts of trains of moving particles with random masses and arrival times or time and space-dependent processes with continuaus realizations with limited power spectra. The direct Liapunov method is effectively applied to a higher order coupled partial differential equations with random time-dependent coefficients.