Electrorheological elastomer vibration isolator in compression-shear mixed mode

Abstract

The invention relates to an electrorheological elastomer vibration isolator, in particular to the electrorheological elastomer vibration isolator in a compression-shear mixed mode. The invention provides a novel electrorheological elastomer vibration isolator in order to solve the problem that an existing intelligent vibration isolation support of an electrorheological elastomer is low in utilization rate of material performance of the electrorheological elastomer, the novel electrorheological elastomer vibration isolator comprises a shell, a gland located in the shell and a supporting table with a conical surface, the bottom face of the supporting table is located in the center of the bottom of the shell, the gland is located above the supporting table, a groove matched with the supporting table is formed in the bottom face of the gland, multiple layers of electrode plates are fixedly arranged between the side wall of the groove and the side wall of the supporting table, the electrorheological elastomer is fixedly arranged between every two adjacent electrode plates, so that the electrorheological elastomer located between the groove of the gland and the supporting table achieves compression-shear composite deformation, and the top of the gland is fixedly connected with a vibration isolation compression rod extending out of the top of the shell, so that the material utilization rate of the electrorheological elastomer is improved.

Description

technical field [0001] The invention relates to an intelligent material vibration isolator, in particular to an electrorheological elastomer vibration isolator, in particular to an electrorheological elastomer vibration isolator in a compression-shear mixed mode. Background technique [0002] Vibration phenomena exist in various mechanical fields such as aerospace, military, automobile, and chemical industry. Vibration phenomena not only reduce production efficiency, but also shorten the service life of machines. Therefore, the research on vibration control is very important. At present, traditional passive vibration isolators still occupy the main market, but their stiffness and damping cannot be adjusted, and the vibration isolation effect is not ideal when the vibration frequency or vibration amplitude changes. [0003] In recent years, due to the rapid development of smart materials, vibration isolation technology based on smart materials has attracted the attention of r...

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Problems solved by technology

[0004] In recent research, scholars have proposed some intelligent material vibration isolation device designs, such as an electrorheological elastomer intelligent vibration isolation support with application publication number CN103806569A, which uses electrorheological elastomer as a variable stiffness vibration isolation material for development For the semi-active shock absorber, in order to ensure a certain vertical bearing capacity, the electrorheological elastomer in this structure is installed horizontally, the vertical displacement of the electrorheological elastomer is small, and the lateral displacement is large. , lower vibration) electrorheological elastomers only produce tension and compression deformation (the tension and compression deformation corresponds to the vertical displacement), there is no shear deformation (the shear deformation corresponds to the lateral displacement), it is difficult to give full play to the electrorheological elastomer under the control of the external field Variable stiffness and damping characteristics, low utilization of the material properties of electrorheological elastomers

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