Nonlinear dynamics of a non-contact translational-to-rotational magnetic transmission

Abstract This paper investigates the dynamics of a non-contact magnetic transmission system that converts translational motion into rotational motion. The system's governing equations, derived under the idealization of a magnetic dipole, were used to obtain analytical expressions for the system's equilibria. Both experimental and theoretical static bifurcation diagrams show co-existing solutions and multiple bifurcations. Theoretical and experimental investigations also unveil interesting behaviors, such as harmonic, sub-harmonic, and chaotic responses, when the drive magnet's motion is sinusoidal.

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