Publications
Theoretical design parameters for a quasi-zero stiffness magnetic spring for vibration isolation
Will S. Robertson, M.R.F. Kidner, Ben S.Cazzolato, Anthony C.Zander (2009)
Journal of Sound and Vibration, 326, p88-103Abstract:
This paper presents an analysis of a magnetic levitation system for vibration isolation.A non-dimensional analysis of the magnetic support is considered and it is shown analytically that for cubical magnets the ratio of force to displacement is directly proportional to face area. The arrangement of magnets examined uses a negative stiffness element to reduce the natural frequency of the suspension. Design criteria are imposed on the system to satisfy mass loading, bandwidth of the required isolation, expected magnitude of the vibration disturbance and required robustness of the system. The vibration response of a system designed to satisfy these requirements is compared to an equivalent linear system and is shown to become increasingly nonlinear as the system moves towards instability.
This material is now only available to staff and students of the University of
Adelaide.
Should you wish to receive a copy, please contact the
AVC Group webmaster.
Note that if this article is under review, then it cannot be released and email requests will not be answered.
Manuscript - available for public access