Magnetic negative stiffness mechanism
A technology of negative stiffness and magnetic yoke, which is applied in the field of magnetic negative stiffness mechanism, can solve the problems of difficult miniaturization, increase of cost, and restrictions on the wide application of air bearing vibration reduction, etc., and achieve good high-frequency vibration interference and isolation of ultra-low-frequency vibration Effect
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[0024] The magnetic pole part of the magnetic negative stiffness mechanism provided by the present invention adopts multiple groups of magnets arranged in parallel, and the magnetization directions of two adjacent magnets are opposite. Such a magnetic circuit arrangement constrains the magnetic force lines through the yoke, reduces magnetic flux leakage, and can improve the magnetic negative stiffness. body stiffness.
[0025] In the magnetic negative stiffness mechanism provided by the present invention, the negative stiffness can be adjusted by the negative stiffness adjusting part, which is used to match the stiffness of the positive stiffness spring connected in parallel with it, so as to adjust the stiffness of the shock absorber. Negative stiffness adjustment is achieved by adjusting the external magnet spacing.
[0026] The structure and working principle of specific embodiments of the present invention will be further described in detail below in conjunction with the a...
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