Dresden 2020 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 58: Poster: Nonlinear Dynamics; Pattern Formation; Networks; Delay Systems; Synchronization

DY 58.4: Poster

Thursday, March 19, 2020, 15:00–18:00, P1C

Dynamic phases of magnetic gears — •Stefan Hartung and Ingo Rehberg — Universität Bayreuth

We investigate the coupling of two rotating spherical magnets experimentally. Geometries in which the driven magnet is phase-locked to the driving one are so-called cogging free couplings [1]. We find that deviations from this arrangement as well as an increasing driving frequency lead towards different kinds of more complex dynamical behavior. The experimental results are compared to a model based on pure dipole-dipole interaction and are summarized in a phase diagram that gives insight into the possibilities of technical implementation of these kinds of couplings.

[1] Exploring cogging free magnetic gears; Stefan Borgers, Simeon Völkel, Wolfgang Schöpf, and Ingo Rehberg; American Journal of Physics 86, 460 (2018); https://doi.org/10.1119/1.5029823.