Resonance device for vibration experiment

A technology of a resonator device and a vibrating table, which is applied in the field of resonator devices, can solve problems such as difficulty in breaking through, and achieve the effect of simple structure, obvious effect and improving high-frequency resonance point.

Active Publication Date: 2006-12-13
SUZHOU SUSHI TESTING INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The energy on this kind of electric vibration table is generally concentrated in the range of 5Hz to 3000Hz. If you want to achieve more than 3000Hz, it is difficult to break through due to the limitation of the maximum frequency of the test system.

Method used

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  • Resonance device for vibration experiment
  • Resonance device for vibration experiment
  • Resonance device for vibration experiment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0058] Example: see Figure 1 to Figure 4 As shown, a resonance device for vibration test is composed of an additional workbench 1, support pad 2 and coupling 3. The vibrating table used together is the DC-3000-36 electric vibrating table produced by our company. The first-order natural resonance frequency of the moving coil of the electric vibrating table is 2200Hz, and the highest frequency that can be achieved is about 3000Hz.

[0059] The additional workbench 1 is a rigid platform, the top surface of which is an additional platform for placing the test piece 4, the bottom surface of the platform is surrounded by support pads 2, and the middle part of the platform is suspended relative to the bottom plane of the support pad 2. The rigid platform adopts a square platform, and its first-order natural resonance frequency is calculated as follows:

[0060] Select Material: Aluminum

[0061] E-modulus of elasticity: 68Gpa

[0062] μ-Poisson's ratio: 0.35

[0063] t=50mm

[...

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PUM

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Abstract

Disclosed is a resonant device applied in vibration test. The device comprises an additive working table fixed on the surface of a vibration table or a bounce table. The main body of the additive working table is a rigid table, which top surface is the additive table for setting testing component; around the bottom of the table are equipped with mounting pads, the middle part of the table is hung in the air relative to the mounting pad plane; the natural first resonance frequency or multiple resonance frequency of the rigid table is greater than the natural resonance frequency of the vibration table or the bounce table. The invention has the advantages that it can improve the range of testing frequency by installing resonance device.

Description

technical field [0001] The invention relates to a vibration or impact test device in environmental mechanical tests, in particular to a resonance device combined with a vibration table or an impact table for increasing the working frequency range. Background technique [0002] In the current shock response test, the highest frequency that can be achieved on the electric vibration table is generally around 3000Hz. If you want to increase the operating frequency, due to the limitation of the highest frequency of the system (the first-order inherent The resonant frequency is around 2200Hz), and there will be obvious energy attenuation after 3000Hz, which cannot meet the requirements of some tests with high-frequency components of the shock response spectrum up to 4000Hz. [0003] The shock response spectrum is an effective online time-domain synthetic spectrum for the electrodynamic vibration table to simulate the explosion shock environment. Generally, aeronautical devices re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02G01M7/08
Inventor 钟琼华王德言
Owner SUZHOU SUSHI TESTING INSTR CO LTD
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