Topic: To be announced

Alexander F. Vakakis

University of Illinois at Urbana - Champaign

Abstract:   To be announced

Biography:   Alexander F. Vakakis is a professor in the Department of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign. He has long been devoted to research on nonlinear dynamics, solid mechanics, energy, and applied physics, and has made significant contributions in these fields. Prof. Vakakis has published over 300 archival publications, holds four patents, and has authored/edited six monographs in dynamics, vibrations, and acoustics. He is the recipient of the ASME Thomas K. Caughey Dynamics Award, the Alexander von Humboldt Research Award, and the Tau Beta Pi Daniel C. Drucker Eminent Faculty Award. He is also a fellow of the American Society of Mechanical Engineers (ASME) and a member of the European Association of Structural Dynamics and the Technical Chamber of Greece.

Topic: To be announced

Ben M. Chen

Chinese University of Hong Kong

Abstract:   To be announced

Biography:   Ben M. Chen is currently a professor and chairman of the Department of Mechanical and Automation Engineering at the Chinese University of Hong Kong (CUHK). Before joining CUHK in 2018, he was a Provost’s Chair Professor in the Department of Electrical and Computer Engineering at the National University of Singapore, where he had worked for 25 years. His current research interests are in unmanned systems and their applications. Professor Chen is an IEEE Fellow and a Fellow of the Academy of Engineering, Singapore. He has authored/co-authored hundreds of journal and conference articles and ten research monographs in control theory and applications, unmanned systems, and financial market modeling. He has served on the editorial boards of a dozen international journals, including Automatica and IEEE Transactions on Automatic Control. He is currently serving as the Editor-in-Chief of Unmanned Systems.

Topic: To be announced

Grzegorz Litak

Lublin University of Technology

Abstract:   To be announced

Biography:   Grzegorz Litak is a professor and head of the Department of Automation at Lublin University of Technology. His research interests include bifurcation theory, chaotic dynamics, and nonlinear time series analysis. Recently, he has also been involved in research on mechanical energy harvesting, with a particular focus on frequency broadband effects. From 2016 to 2018, he served as a professor at the Akademia Górniczo-Hutnicza University of Science and Technology. He is an expert in nonlinear and complex phenomena and has published over 300 papers, including approximately 250 in international journals. He actively collaborates with researchers from various countries around the world. Currently, he is a member of the Polish Physical Society, the European Physical Society, the Polish Society of Theoretical and Applied Mechanics, and Euromech. He has been an organizer and invited speaker at numerous international conferences and has served as the contractor and manager of many national and international projects.

Topic: To be announced

Walter Lacarbonara

Sapienza University of Rome

Abstract:   To be announced

Biography:   Walter Lacarbonara is a professor in the Department of Structural and Geotechnical Engineering at Sapienza University of Rome. He earned his Ph.D. from the same university and has since focused on research in nonlinear structural dynamics, stability, and vibration control. He has published over 300 journal and conference papers. Prof. Lacarbonara served as Chair of the ASME Technical Committee on Multibody Systems and Nonlinear Dynamics. He has organized over 10 international symposia and conference sessions and has been invited to deliver keynote and plenary lectures at numerous universities and international conferences. He currently serves as Editor-in-Chief of Nonlinear Dynamics and Associate Editor of the International Journal of Aeronautical and Space Sciences. Additionally, he has contributed to the editorial boards of other journals in mechanics and applied mathematics.

Performance, Accuracy, and Stability of Manufacturing Processes and Machines

Kornel F. Ehmann

Northwestern University

Abstract:   The outcome of any manufacturing operation critically hinges on the ability to control the primary physical process responses, e.g., temperatures, forces, vibrations, etc., which influence the part’s attributes, such as its accuracy, tolerances, surface topography, residual stresses, etc., while, at the same time, assuring dynamic process and machine stability. Several examples from removal, formative, and additive processes will be presented to demonstrate the varying nature of the pragmatic manufacturing and manufacturing machine problems dictated by the underlying dominant physical mechanisms influencing their responses, necessitating different control and compensation solution approaches. Specifically, the following cases will be addressed: (a) the inherent non-linear nature of micro-cutting operations and its implications on process outcomes, (b) forming force and springback control in double-sided incremental sheet forming to maintain part accuracy, (c) dynamic instability, i.e., rolling chatter, in sheet rolling to assure sheet quality and productivity, (d) volumetric error compensation of a 3-DOF translational parallel manipulator to compensate for inherent machine kinematic and geometric errors, and (e) melt pool control in directed energy deposition (DED) processes to meet desired part specifications.

Biography:   Kornel F. Ehmann is a distinguished professor in the Department of Mechanical Engineering at Northwestern University, USA. He received BSc and MSc degrees in 1970 and 1974 from the University of Belgrade, and a PhD from the University of Wisconsin-Madison in 1979. He has served as Editor-in-Chief of Manufacturing Letters and Technical Editor of the Journal of Manufacturing Science and Engineering. He has published over 450 articles and mentored over 60 Ph.D. students. He was awarded the SME Gold Medal, ASME Blackall Machine Tool and Gage Award, ASME Milton C. Shaw Manufacturing Research Medal, SME Frederick W. Taylor Research Medal, and the ASME K. Ehmann Manufacturing Medal. He is a Fellow of ASME, SME and ISNM.