Combined non-linear high-damping alloy vibration damper

Abstract

The invention discloses a combined non-linear high-damping alloy vibration damper. The combined non-linear high-damping alloy vibration damper comprises a double U-shaped spring and a plate spring, wherein the double U-shaped spring comprises an upper mounting surface and a lower mounting surface; two U-shaped springs which are oppositely bent outwards are arranged between the upper mounting surface and the lower mounting surface; one ends of the U-shaped springs are fixed on the upper mounting surface, and the other ends of the U-shaped springs are fixed on the lower mounting surface; the plate spring is fixedly mounted at the bottom of the middle of the double U-shaped spring; an initial gap is formed between the double U-shaped spring and the plate spring; and the initial gap is a conversion threshold value under a normal working condition and an impact working condition. According to the technical scheme, it is ensured that the vibration damper can provide the vibration attenuatingand damping effects similar to rubber under the normal working condition, and has high rigidity characteristic when the inflection point of a design threshold value is reached under the high impact state; and it is ensured that equipment and a vibration damping pad cannot be damaged, and the normal running state of the equipment can be quickly restored.

Description

Technical field [0001] The invention relates to a shock absorber, in particular to a shock absorber that exhibits high rigidity characteristics when reaching a design threshold inflection point under a high impact state. Background technique [0002] When the equipment is installed with the foundation part, it is usually necessary to connect the vibration damping pad to ensure that external vibration is not transmitted to the equipment, and it can also prevent the vibration of the equipment itself from being transmitted to the outside, that is, the vibration is separated by the damping pad. The traditional damping pad is composed of rubber, such as figure 1 Shown. In order to increase the rigidity of some damping pads without changing its size, metal steel wires are added to the rubber to increase its rigidity and strength to meet the requirements of heavy equipment installation and vibration isolation. The stiffness of this type of shock absorber usually varies linearly. [0003...

AI Technical Summary

Problems solved by technology

Then, under some special working conditions, such as when receiving an external impact (such as the impact of a shell), the warship will receive an impact of dozens of times of acceleration in an instant, and the impact force will be transmitted to the equipment through the vibration-damping pad. At this time, the traditional vibration-damping pad It will be torn and damaged in an instant, and the vibration damping effect will be completely lost, making the equipment unable to operate normally

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