Benchmarking workshops (also called mechathons when held in the area of mechatronics) can be used to benchmark existing technologies and bring together experts of the same field in order to encourage knowledge transfer and future cooperation.  Within the frameworks of the Comet K2 Research Center “Symbiotic Mechatronics“ of LCM and the “Mechatronics Alliance” a vibration damping mechathon was organized in september 2018 in Linz.

The participants from LCM, Fraunhofer LBF and Flanders Make applied several vibration damping concepts and actuators on 3 different test set-ups (demonstrators). Each participating team had a very limited time slot of 2,5 hours to work on one of the demonstrators. After discussion and measurement of the results, the teams rotated to the next demonstrators.  The workshop in Linz was more focused on knowledge-exchange and hands-on working in limited time than on competition.

The demonstrators represent 3 typical situations in vibration damping: a multistorey building with almost no damping, a rigid plate supported by passive rubber damping elements excited by an unbalanced rotor and a clamped flexible plate excited by a loudspeaker.

As control strategies and actuators the following concepts have been applied successfully: piezo-electric actuated TMD, shunt damping, electromagnetic actuator, piezo-electric patch transducers, modal control, velocity feedback and different variants of LMS adaptive filter systems.

The results of the workshop will be presented at the 4SMARTS concerence in May 2019 in Darmstadt.

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