Impact test device and experimental method based on spatial motion sandwich plate structure

A technology of space motion and impact testing, applied in the testing of machine/structural components, impact testing, measuring devices, etc., can solve the problems of impact response behavior test simulation of composite sandwich panel structure, etc. Effect

Active Publication Date: 2020-10-09
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 impact test of the existing fixing device, the present invention has the problem that it cannot

Method used

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  • Impact test device and experimental method based on spatial motion sandwich plate structure
  • Impact test device and experimental method based on spatial motion sandwich plate structure
  • Impact test device and experimental method based on spatial motion sandwich plate structure

Examples

Experimental program
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Effect test

Example Embodiment

[0033] Specific embodiment one: combination Figure 1 to Figure 7 To illustrate this embodiment, an impact test device based on a spatial motion sandwich panel structure in this embodiment includes an upper mounting splint 1, a lower mounting splint 3, a vertical plane vibration device A, a horizontal plane motion device B, an experiment base 6, a signal The generating device 7 and the signal receiving device 8, the signal generating device 7 and the signal receiving device 8 are arranged oppositely and installed on the experiment base 6, the horizontal plane movement device B is plugged into the experiment base 6, and the horizontal plane movement device B is located Between the signal generating device 7 and the signal receiving device 8, the vertical plane vibrating device A is plugged into the horizontal plane moving device B, the upper mounting splint 1 and the lower mounting splint 3 are buckled together and the composite sandwich panel 2 is clamped, and then the lower moun...

Example Embodiment

[0041] Specific implementation manner two: combination Figure 1 to Figure 3 To describe this embodiment, the lower installation splint 3 of this embodiment includes a lower splint 3-1 and a splint slide groove 3-2, and the splint slide groove 3-2 is fixedly installed on the lower end surface of the lower splint 3-1. This arrangement is convenient for mating and sliding insertion with the vertical plane vibration device A. The other composition and connection relationship are the same as in the first embodiment.

Example Embodiment

[0042] Specific implementation mode three: combination Figure 1 to Figure 3 To illustrate this embodiment, the vertical plane vibration device A of this embodiment includes an upper connecting cover A-1, a lower connecting cover A-2, a stopper A-4 and a plurality of vibration springs A-3, and a lower connecting cover A groove is opened in A-2, multiple vibration springs A-3 are installed in the lower connecting cover A-2, the upper connecting cover A-1 is covered on the multiple vibration springs A-3, and the upper connecting cover A- 1 and the lower connecting cover A-2 are connected by a stopper A-4, and the upper connecting cover A-1 is located in the stopper A-4 and can float up and down under the action of the vibration spring A-3. This arrangement facilitates the realization of vertical vibration. Other components and connection relationships are the same as those in the first or second embodiment.

[0043] The arrangement of the stopper of this embodiment ensures that th...

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Abstract

The invention relates to an impact testing device and an experimental method, in particular to an impact testing device and an experimental method based on a spatial motion sandwich plate structure. The invention aims to overcome the problem that an impact test of an existing fixing device cannot be used for test simulation of impact response behaviors of a composite sandwich plate structure in amoving state. A horizontal plane motion device is inserted into an experiment base, a vertical plane vibration device is inserted into the horizontal plane motion device, and an upper mounting clamping plate and a lower mounting clamping plate are buckled and clamp to mount a composite sandwich plate on the vertical plane vibration device. According to the invention, an impact signal excitation device guides a hammer head to fall down; and height and falling speed information corresponding to different positions of the impact hammer head at falling moments is measured through a signal generating device and a signal receiving device. The impact testing device is used for testing mechanical properties.

Description

technical field [0001] The invention relates to an impact testing device and an experimental method, in particular to an impact testing device and an experimental method based on a space-moving sandwich plate structure. Background technique [0002] Composite sandwich panel, or sandwich sandwich panel, is a typical sandwich energy-absorbing structure, which has the key functions of reducing the damage of the protected object when it is subjected to collision and impact, and improving the protective performance of the structure. Composite sandwich panels are mainly composed of panels made of metal materials or non-metal materials, and energy-absorbing materials between the panels. Usually, the impact test for composite sandwich panels is completed on a fixed device, that is, the test structure is installed on a fixed experimental device, and then the corresponding impact test is completed through impact equipment. [0003] In many engineering application environments, compos...

Claims

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Application Information

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IPC IPC(8): G01N3/303G01N3/02G01N3/06G01M7/08
CPCG01M7/08G01N3/02G01N3/06G01N3/068G01N3/303G01N2203/001G01N2203/0039G01N2203/0635G01N2203/0641G01N2203/0676G01N2203/0682
Inventor 路胜卓吴限德马加路陈卫东马敬鑫高天森吴世博陈光
Owner HARBIN ENG UNIV
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