Publications
Zero-stiffness magnetic springs for active vibration isolation
Will Robertson, Rohin Wood, Ben S. Cazzolato, Anthony C. Zander (2006)
Active 2006, Adelaide, Australia, 18-20 September, Paper number: a06_080.pdfAbstract:
Active vibration isolation of large load structures typically requires significant actuator energy. With a zero stiffness support, which can be realised with a permanent magnet system, reactive forces may be applied to the structure with comparatively little effort. This paper presents simulation results for such a magnetic spring arrangement which is stabilised by a non-linear controller. Transmissibility less than unity is demonstrated over the entire frequency spectrum.
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