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Simulated collision test device and test method thereof

A technology of crash test and test method, which is applied in the direction of measuring device, impact test, machine/structural component test, etc. It can solve the problems of low high-speed impact energy, limited test range, and the inability to apply impact crash test of high-strength structural parts, etc. Achieve the effect of low site requirements, easy operation, and reduce the difficulty of data processing and analysis

Inactive Publication Date: 2009-10-07
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

Its disadvantages are: high-speed impact energy is low, and the test range is limited. It is mostly used in the crash test of automobile airbags, and cannot be used in the impact crash test of high-strength structural parts.

Method used

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  • Simulated collision test device and test method thereof
  • Simulated collision test device and test method thereof
  • Simulated collision test device and test method thereof

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Embodiment Construction

[0031] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0032] Such as figure 1 As shown, this embodiment includes: a drop weight impact test module 1, a sensor module 2, a charge amplifier module 3, an A / D acquisition computer module 4, a high-speed camera module 5, an illumination module 6 and a test piece 7, wherein: the sensor The output end of the module 2 is connected with the input end of the charge amplifier module 3 to transmit the sensing signal, the output end of the charge amplifier module 3 is connected with the input end of the A / D acquisition computer module 4 to transmit the analog signal, and the test piece 7 is fixed on On the drop weight impact test ...

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Abstract

A simulated collision test device in the technical field of testing and a test method thereof include a drop weight type impact test module, a sensor module, a charge amplifier module, an A / D acquisition computer module, a high-speed camera module, a lighting module and a test piece to be measured. The invention is applied to detecting impact performance of high-strength steel and superhigh strength steel; and a trigger at the top of the test piece automatically triggers and samples without merely using acceleration signals to start sampling, thereby reducing the difficulty of on-treatment analysis of subsequent data.

Description

technical field [0001] The invention relates to a device and method in the field of testing technology, in particular to a simulated crash test device and a test method for detecting the crash performance of high-strength steel. Background technique [0002] The application of high-strength steel materials in automobile manufacturing can achieve a good weight reduction effect on the premise of ensuring the safety performance of the automobile, thereby effectively reducing fuel consumption and reducing pollution. Collision performance is an important indicator of the passive safety of automobiles. In order to predict the passive safety performance of automobiles more accurately by means of computational simulation in the early design stage, it is necessary to evaluate the collision performance of high-strength steel plates. Developed countries in the automobile industry have formulated automobile passive safety standards for their own countries, and have formed their own stan...

Claims

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Application Information

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IPC IPC(8): G01M7/08G01N3/303
Inventor 张卿卿李大永史文超彭颖红汪晨
Owner SHANGHAI JIAO TONG UNIV
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