researchXchange: Tilted washboards and Chaotic Dynamics in a Vintage Rotating Roasting Spit 7.Oktober.2022

07.10.2022, 12.00–12.45 Uhr – Burgdorf, Pestalozzistrasse 20 - E013 / online, Teams

Presentation

Tilted washboards and Chaotic Dynamics in a Vintage Rotating Roasting Spit

Among a collection of mechanical and electrical devices studied by Yves ROCARD in his 1943 book “Dynamique Générale des Vibrations”, the so-called Bouasse-Sarda’s “tournebroche” (rotary spit) is a fascinating two degrees of freedom dynamical system. It stylizes a wide class of forced parametric oscillators exhibiting a rich range of complex dynamical behaviors including deterministic chaos, a dynamical concept not popular in the forties and hence not yet discussed in Y. ROCARD’s book. Today’s numerical tools offer a new possibility to revisit, this amazingly simple but rich dynamical system studied by Y. ROCARD more than 75 years ago, in a didactical and updated manner.

Speaker

Prof. Dr. Julio Rodriguez

Julio Rodriguez received his Master in Mathematics in 2007 at the University of Geneva under the supervision of Prof. M. GANDER (Section de mathématiques) and Prof. M. GILLI (Département d'économétrie). He then joined the doctoral school of Manufacturing Systems and Robotics at the EPFL where he received his Ph.D. under the supervision of Prof. HONGLER in 2011. In March 2013, he completed a second Ph.D. thesis in theoretical physics at the University of Bielefeld under the supervision of Prof. BLANCHARD. Since September 2020 he is a Prof. of Mathematics at the Bern University of Applied Sciences teaching in the Department of Engineering and Computer Science. He also works part time for Swissgrid AG, a company he joined since 2015, as a senior specialist in energy data. His research is centered on nonlinear dynamical systems and stochastic processes, focusing on networks of coupled limit cycle oscillators, synchronization, adaptive mechanisms, delayed differential equations and noise induced patterns in oscillatory networks as well as chaotic behavior in dynamical systems.  

Steckbrief

  • Startdatum 07.10.2022, 12.00–12.45 Uhr
    In Kalender eintragen
  • Ort Burgdorf, Pestalozzistrasse 20 - E013 / online, Teams

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