Quasi-zero stiffness vibration isolator with annular permanent magnets used for generating negative stiffness
A quasi-zero stiffness, permanent magnet technology, applied in the field of vibration isolators, can solve the problems of the hysteretic elastic effect of the support spring, the large static deformation of the support spring, and reduce the stiffness of the system, and achieve the effect of weak nonlinear effect and good uniformity.
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[0025] The present invention will be described in further detail below in combination with specific embodiments.
[0026] like figure 1 As shown, the present invention uses a ring-shaped permanent magnet to generate a quasi-zero stiffness vibration isolator with negative stiffness, including a base 1, and an outer cylinder 4 connected to the base 1 through a first bolt 3, and the bottom of the inner wall of the outer cylinder 4 has a ring The bottom gap, the base 1 and the outer cylinder 4 are provided with a base boss 2 at the corresponding position, the bottom gap of the outer cylinder 4 matches the shape of the base boss 2 of the base 1, and the base boss 2 of the base 1 is stuck on the outer cylinder 4 On the bottom notch of the base, ensure the centering of the base 1 and the outer cylinder 4. like figure 2 As shown, the top of the inner wall of the outer cylinder 4 has a top gap, and the outer permanent magnet 7 is placed in the top gap. The upper cover 9 is connecte...
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