A comparison between cylindrical and cross-shaped magnetic vibration isolators: ideal and practical

• Main Authors: Van Casteren D.T.E.H., Paulides J.J.H., Lomonova E.A.
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2015-12-01
• Series: Archives of Electrical Engineering
• Subjects: Gravity compensation; magnetic; vibration isolation
• Online Access: http://www.degruyter.com/view/j/aee.2015.64.issue-4/aee-2015-0044/aee-2015-0044.xml?format=INT

In this paper a cross-shaped isolator consisting of cuboidal magnets and a cylindrical isolator are compared by resonance frequency to volume ratio and shape. Both isolators are capable of obtaining a low resonance frequency, i.e. 0.15 Hz and 0.01 Hz for the cross and cylinder, respectively. The volume of both isolators is comparable, only the shape is different, resulting in a tall structure with a small footprint for the cross and a flat with a large diameter cylindrical structure. A sensitivity analysis shows that due to the large amount of magnets, the cross-shaped isolator is less sensitive to manufacturing tolerances