期刊
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
卷 94, 期 -, 页码 200-206出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijnonlinmec.2017.03.021
关键词
Magnetic levitation; Energy harvesting; Coupling coefficient; Experimental identification
类别
资金
- National Science Centre [DEC-2013/11/D/ST8/03311]
Numerical and experimental studies of a magnetic levitation harvester are presented in the paper. The idea is based on the motion of permanent cylinder magnet in a coil exploited for energy harvesting. The novel model is based on a new definition of the coupling coefficient (inductive coefficient) which relates mechanical and an electrical components. The performed static and dynamics experimental tests show that this coefficient is a nonlinear function of the magnet position, and highly depends on the magnet coordinate in the coil, in such a way that the maximum energy is obtained in a coil ends. The comparison between classical fixed value model and novel nonlinear model of the inductive coefficient is presented for selected cases. The most essential differences are presented.
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