Dear Colleagues,
We are happy to announce the next webinar in the TDS Webinar series.
Speaker: Tomas Vyhlidal, Czech Technical University in Prague
Title: Time delay algorithms for active vibration suppression - theory and applications
Date & Time: September 16, 2022, Friday @ 4:00 pm (CET), 7:00 am (PDT), 10:00 am (EDT), 10:00 pm (CST)
Registration:
https://umich.zoom.us/meeting/register/tJUucumhqD0uGN3j6R3ThGjkH_6V_FNFbgYx The registration is free and takes about 30 seconds. If you experience any issues please email orosz@umich.edu
ABSTRACT: Involving time delays in control algorithms proved useful in many aspects of vibration suppression and flexible mode compensation of mechanical systems. This is mainly due to ability to store information on the current half period and act proportionally in a subsequent half period or its multiple to beat vibration. Interestingly, it can be done by a dynamic compensator/controller free of poles, though, with infinitely many zeros. The arising infinite dimensionality of the closed loop dynamics then needs to be considered in the design. After highlighting spectral properties of delay systems/controllers and their frequency domain implications towards vibration suppression, the following applications will be targeted: i) experimental validation of non-collocated vibration absorption by delayed resonator, ii) delayed resonator extension to multi-dimensional vibration absorption, iii) internal model control scheme to suppress periodic disturbance, and iii) theory and validation of optimal input shaping.
BIOGRAPHY: Tomas Vyhlidal (1974) received MSc in Automatic control and engineering informatics in 1998, and Ph.D. in Control and systems engineering in 2003, both from the Faculty of Mechanical Engineering (FME), Czech Technical University (CTU), Prague, Czech Republic. Since 2000, he has been with the Department of Instrumentation and Control Engineering, FME - CTU, professor since 2012 and the department head since 2019. Since 2015, he has also been with the Czech Institute of Informatics, Robotics, and Cybernetics, CTU, where he leads research group Machine and process control. He has been a member of the Technical Committee for Linear Control Systems of IFAC since 2013, vice-chair on industry since 2017. He was IPC chair of two IFAC-TDS workshops (Boston, 2012, and Istanbul 2016). His research interests include analysis and control of time delay systems, vibration suppression, mechatronic control system design, and control of industrial processes.
In the attachment you find a poster with an announcement of lecture. We would appreciate if you could distribute it among your colleagues and students, along with the data to access the seminar.
This webinar series is organized as an activity of the IFAC Working Group on Time Delay Systems, which operates within the Technical Committee of Linear Control Systems of IFAC. The aim of the Working Group is to increase interactions and foster collaborations among researchers interested in time delay systems, not restricting to the systems and control community or to the IFAC Technical Committee. The Working Group focuses on all aspects related to time delay systems: modelling and identification, analysis, filtering and estimation, stability and stabilization, safety, structural properties, robustness, approximation techniques and numerical methods, control schemes and application in process control, vibration control, networked systems, autonomous agents, communication, bio-engineering, economics and other fields.
This year's the program consists of the following speakers:
Henk Nijmeijer - April 1, 16h-17h CET
Sabine Mondié - June 17, 16h-17h CET
Tomás Vyhlídal - September 16, 16h-17h CET
Dimitri Breda - December 2, 16h-17h CET
Every presentation will be followed by a meeting of the IFAC Working Group on Time Delay Systems. Please do not hesitate to contact us if you wish to put some topic on the meeting agenda. Soon we will send the link for the first webinar in the series and more details will be available at the Working Group's website
http://timedelaysystems.caltech.eduKind regards,
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