The invention discloses a passive vibration isolator based on a cubic structure. The passive vibration isolator based on the cubic structure comprises an upper platform, a lower platform, an angle seat, a bent leaf spring and a limiting column, wherein the angle seat and the bent leaf spring form a single leg which is used as a main vibration isolation assembly of the whole vibration isolator; hollowed-out letter marks are arranged on two sides of the upper end of the bent leaf spring, so that the vibration isolation performance can be improved; the limiting column provides support for protection during working of the vibration isolator; and when deformation is larger than the limiting length, the whole vibration isolator is in a protected state. The vibration isolator is based on the cubic structure, belongs to a novel passive element vibration isolation device and is mainly used for a marine environment. The vibration isolator adopts a limiting mechanism, and external force damage caused by high impact, high load or multiple degrees of freedom can be avoided. The passive vibration isolator meets different environmental requirements, optimization design is carried out, and the size of the whole platform is reduced. Compared with a traditional vibration isolator with a cubic structure, the passive vibration isolator based on the cubic structure has the characteristics of compact structure and high space utilization rate, and meanwhile has remarkable vibration isolation performance.

Passive vibration isolator based on cubic structure

The invention discloses a Stewart configuration-based vibration damper. The vibration damper comprises an upper platform, a lower platform, vibration damping assemblies and limiting pieces; the vibration damping assemblies and the limiting pieces are evenly distributed between the upper platform and the lower platform; and the length of each vibration damping assembly when the vibration damping assembly is compressed to the maximum extent is not greater than the limiting length of each limiting piece. The Stewart configuration-based vibration damper is a vibration damper patent of a novel passive element, and is mainly used for marine environments; dual limiting mechanisms are employed to avoid that leaf springs are destroyed by high impact, high loading or horizontal swinging; by structural optimization design, occupied area of surfaces of the platforms is reduced; and compared with a traditional Stewart configuration-based vibration damper, the Stewart configuration-based vibration damper is small in occupied area and compact in structure, and fully utilizes space between the upper platform and the lower platform.

Stewart configuration-based vibration damper

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Stewart configuration-based vibration damper