A multi-directional wide-frequency domain vibration isolation/shock reduction device

Abstract

The invention discloses a multi-directional and broad-frequency domain vibration / seismic insulation and reduction device comprising an upper steel plate and a lower steel plate which are arranged oppositely and further comprising a viscoelastic supporting seat located between the upper steel plate and the lower steep plate. The viscoelastic supporting seat is fixedly connected with the upper steel plate and the lower steel plate through bolts. A viscoelastic damper is arranged outside the viscoelastic supporting seat and fixedly connected with the upper steel plate and the lower steel plate through bolts. The viscoelastic damper is composed of an upper gear frame and a lower gear frame which are mutually engaged as well as a viscoelastic material covering the upper gear frame and the lower gear frame. A certain gap is formed between the upper gear frame and the lower gear frame and filled with a vulcanized viscoelastic material. An anti-pulling steel rope is arranged between the viscoelastic supporting seat and the viscoelastic damper and fixedly connected with the upper steel plate and the lower steel plate through connecting buckles. According to the vibration / seismic insulation and reduction device, within board frequency, good vibration / seismic insulation and reduction performance in the horizontal and vertical direction is achieved, good robustness and stability are achieved while performance is high.

Description

technical field [0001] The invention relates to a vibration isolation / vibration reduction device, in particular to a vibration isolation / vibration reduction device capable of multi-directional wide frequency domain. Background technique [0002] With economic development and social progress, high-rise buildings, long-span structures, important building facilities, and structures with irregular shapes (such as structures with large overhangs) are increasing; at the same time, urban rail transit is booming, high-speed railways, Underground railways and other large-scale construction. Under the action of dynamic loads (earthquakes, strong winds, vibration loads under orbital operation, etc.), the building structure vibrates, which can easily lead to a decrease in the comfort level of the structure, a decrease in safety, or even damage. How to reduce the complex and changeable vibration effect has become an important issue. topic. Structural vibration control is a new type of ...

AI Technical Summary

Problems solved by technology

However, there are certain irreconcilable contradictions in these two aspects, making it still difficult for the existing multi-dimensional isolation devices to achieve the ideal vertical isolation effect

For another example, in the field of track vibration control, the vibration generated by subway operation has a very wide frequency band. It is difficult to achieve full-frequency vibration isolation by relying solely on vibration isolation devices. Vibration Band Questions

In addition to the above-mentioned problems, the current traditional multi-dimensional vibration isolation / vibration reduction device has low damping and almost no energy dissipation capacity, which also limits the new ideas of multi-dimensional vibration isolation / vibration reduction device, and more development

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