An experimental setup for acoustic metamaterial plate structure

A technology of acoustic metamaterials and experimental devices, which is applied in the direction of material analysis, measuring devices, and analytical materials using sound waves/ultrasonic waves/infrasonic waves. Effect of prestressing and cost saving

Active Publication Date: 2022-08-09
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the prior art lacks a dedicated experimental device in the process of dynamic experimental research on the acoustic metamaterial plate structure, thereby affecting the accuracy of the experimental data, the present invention further provides an experimental device for the acoustic metamaterial plate structure

Method used

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  • An experimental setup for acoustic metamaterial plate structure
  • An experimental setup for acoustic metamaterial plate structure
  • An experimental setup for acoustic metamaterial plate structure

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Experimental program
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specific Embodiment approach 1

[0021] Specific implementation method 1: Combination figure 1 and Image 6 Explain that this implementation method, an experimental device of an acoustic super material board structure in this implementation method, the experimental device includes ultra -material board 5, two fixture brackets 1. Two positioning rods 6, two fixed pressure plate 7 and 2Ns 2n. Connect, n is a positive integer;

[0022] The two fixture brackets 1 is relatively set on both sides of the super material board 5, each fixing board 7 is installed on the top of a fixture bracket 1, a substrate 51 in the super material board 5 is set on the fixture bracket 1 and the fixed pressure plate 7 7 In between, and the super material board 5 is fixed on the fixture bracket 1, each positioning rod 6 is set on one side of the two fixture bracket 1, and each positioning rod 6 is connected to the two fixture brackets 1, each one, each of which The fixture bracket 1 is fixed to the base orbit of the vibration ground throug...

specific Embodiment approach 2

[0024] Specific implementation method 2: Combination Image 6 and Figure 7 Explain that this implementation method, this implementation method is further limited to the ultra -material board 5 of the specific embodiment. In this embodiment, the super material board 5 includes two substrate 51 and Z single rods 53, Z is the as the Positive integer, two substrates 51 parallel settings, Z one straight rod 53 evenly distributed between two substrate 51, and one end of each straight rod 53 is fixed with a substrate 51. A excitement hole 52. Other composition and connection methods are the same as the specific embodiments.

[0025] In this embodiment, the super material board 5 includes two substrate 51, one of the substrate 51 is set between the fixture bracket 1 and the fixed pressure plate 7, which is used to hold the fixing. Double fixation to ensure that the installation is more stable. The substrate 51 and the controllers 53 are made of controllable positions. The materials of the ...

specific Embodiment approach 3

[0026] Specific implementation method three: combined Figure 3 to Figure 5 Explain that this implementation method, this implementation method is further limited to the fixture bracket 1 described in the specific implementation method. In this implementation method, the fixture bracket 1 includes the standing board 11 and the bottom panel 12, and the bottom surface of the vertical board 11 is fixed on the bottom surface. On the surface of the bottom panel 12, the top of the bottom panel 12 is far from the end of the stand 11 with n tolerance 121, each connector is set in a pore 121, and the top surface of the standing board 11 is provided with the length of the length direction. M thread blind hole, M is the positive integer, the stand 11 is far from the side 12 of the bottom panel 12, there is a connection square bar 111, the connected square bar 111 has a connecting slot 112, and another substrate 51 in the super material board 5 is set on the connection In the slot 112. Other c...

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Abstract

An experimental device for an acoustic metamaterial plate structure belongs to the technical field of structural elements, and is mainly used to solve the problem that the prior art lacks a dedicated experimental device in the process of dynamic experimental research on an acoustic metamaterial plate structure, thereby affecting the accuracy of experimental data. In the present invention, two fixture brackets are arranged on both sides of the metamaterial plate oppositely, each fixed pressure plate is installed on the top of a fixture bracket, and a substrate in the metamaterial plate is arranged between the fixture bracket and the fixed pressure plate, and The metamaterial board is fixedly installed on the fixture bracket, each positioning rod is arranged on one side of the two fixture brackets, and each positioning rod is fixedly connected with the two fixture brackets, and each fixture bracket is connected to the vibration isolation through N connectors. The foundation track is fixedly connected. The invention is mainly used as an experimental device for testing the dynamic performance of the acoustic metamaterial plate structure.

Description

Technical field [0001] The invention involves an experimental device for the structure of the acoustic super material board, which is the field of structural component technology. Background technique [0002] The engineering structure of rods, beams, boards, etc. is the main carrier of or transmitting vibration, and it is also a part of the problem of more prominent vibration. The acoustic super material structure is based on rods, beams, boards, etc., and the local resonance unit is periodic. It has a significant elastic wave gap characteristics. Through the propagation of human adjustment waves, it can effectively realize the structure of the structure in the band frequency range. Internal vibration and vibration. [0003] Compared with theoretical research and numerical simulation, there are very few dynamic experiments on super material structures, especially the structure of super material board structures. The structural dynamics experiments of acoustic superclass board ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04G01N29/22
CPCG01N29/045G01N29/223G01N2291/2632
Inventor 鄂林仲阳吴志静邹广平李凤明孙爱军杜强
Owner HARBIN ENG UNIV
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