Internally hollow metal rubber vibration isolator with negative Poisson's ratio characteristic

Abstract

The invention discloses an internally hollow metal rubber vibration isolator with a negative Poisson's ratio characteristic. The internally hollow metal rubber vibration isolator comprises a plurality of complete unit bodies (100) with the same structure and a plurality of complementary unit bodies (200) with the same structure, which are arranged in an overlapped way. Each of the complementary unit bodies is half of each of the complete unit bodies in structure. The overlapped arrangement comprises a middle arrangement part (1), a left-end arrangement part (2), a right-end arrangement part (3), a left complementary arrangement part (4) and a right complementary arrangement part (5), wherein the middle arrangement part (1) is arranged in the middle, the left complementary arrangement part (4) and the right complementary arrangement part (5) are arranged on two sides of the middle arrangement part (1) respectively, the left-end arrangement part (2) is arranged on the left side of the left complementary arrangement part (4), and the right-end arrangement part (3) is arranged on the right side of the right complementary arrangement part (5). According to the internally hollow metal rubber vibration isolator, the problems of vibration fatigue and impact failure of the vibration isolator are solved by utilizing good damping performance of a metal rubber structure damping material on one hand, and the impact load resistance of the vibration isolator is improved through the negative Poisson's ratio characteristic of the stagger arrangement structure of the complete unit bodies and the complementary unit bodies on the other hand.

Description

technical field [0001] The invention relates to a damping structure, in particular to a hollow metal rubber vibration isolator with negative Poisson's ratio characteristics. Background technique [0002] In the development and use of modern industrial machinery, the vibration problem directly affects the reliability, safety and performance of the equipment, so it is of great practical significance to take appropriate vibration control measures. The negative Poisson's ratio property of vibration isolators has attracted much attention in the field of vibration control due to its significant impact on material and mechanical properties. The negative Poisson's ratio characteristic means that the material or structure will expand in the transverse direction (or length direction) when it is tensioned, and shrink in the transverse direction (or length direction) when it is compressed. [0003] The improvement of the mechanical properties of the material or structure by the vibrati...

AI Technical Summary

Problems solved by technology

On the one hand, the hollow metal rubber vibration isolator of the present invention utilizes the good damping performance of the metal rubber structural damping material, thereby solving the vibration fatigue and impact failure problems of the hollow metal rubber vibration isolator; on the other hand, through the staggered structure design The negative Poisson's ratio characteristics brought by it improve the ability of the vibration isolator to resist shock loads

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