The full phase space dynamics of a magnetically levitated electromagnetic vibration harvester.

ABSTRACT: We consider the motion of an electromagnetic vibrational energy harvester (EMVEH) as function of the initial position and velocity and show that this displays a classical chaotic dynamical behavior. The EMVEH considered consists of three coaxial cylindrical permanent magnets and two coaxial coils. The polarities of the three magnets are chosen in such a way that the central magnet floats, with its lateral motion being prevented by enclosion in a hollow plastic tube. The motion of the floating magnet, caused by e.g. environmental vibrations, induces a current in the coils allowing electrical energy to be harvested. We analyze the behavior of the system using a numerical model employing experimentally verified expressions of the force between the magnets and the damping force between the flo

SUBMITTER: Jensen TW 

PROVIDER: S-EPMC8368241 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature