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Four-cell metal tube for scientific research

A technology of metal tubes and unit cells, applied in the field of four-unit cell metal tubes for scientific research

Inactive Publication Date: 2017-05-31
成都贝恩云广告传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on thin-walled metal tubes at home and abroad mainly focuses on the energy absorption characteristics of square tubes and circular tubes, but there is no research on the impact energy absorption of conical tubes, especially the energy absorption characteristics of conical tubes with unit cells.

Method used

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  • Four-cell metal tube for scientific research

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Experimental program
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Effect test

Embodiment Construction

[0012] Such as figure 1 As shown, the four-cell metal tube for scientific research, the main body 1 is a tapered thin-walled tube, and a "ten"-shaped tube wall 2 is arranged inside the main body 1, and the tube wall 2 extends from the top of the main body 1 to the bottom; the middle part of the main body 1 is set There is a prefabricated deformation groove 3 with an inner concave; an upper acceleration sensor 5 is arranged above the prefabricated deformation groove 3, a lower acceleration sensor 6 is arranged below the prefabricated deformation groove 3, and both the upper acceleration sensor 5 and the lower acceleration sensor 6 are provided with outgoing signals The wire 7. Body 1 has a taper of 0.3. The ratio of the wall thickness to the height of the main body 1 is 1:15-1:30, and the optimal ratio is 1:25. The prefabricated deformation groove 3 is a continuous annular groove or a discontinuous annular groove. The cross section of the prefabricated deformation groove 3 i...

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Abstract

The invention relates to a four-cell metal tube for scientific research. The our-cell metal tube for scientific research comprises a body, where the body is a conic thin-wall tube, the body is internally provided with a crossed tube wall, the tube wall extends from the top end of the body to the bottom end, the middle portion of the body is provided with an inner-concave preformed deformation groove, an upper portion of the preformed deformation groove is provided with an upper acceleration sensor, a lower portion of the preformed deformation groove is provided with a lower acceleration sensor, and the upper acceleration sensor and the lower acceleration sensor are respectively provided with leads for transmitting signals out. According to the four-cell metal tube, after the acceleration sensors are arranged at different positions, speed change of different portions in a deformation process can be tested respectively, an actual deformation process is detected, and better bases are provided for scientific research.

Description

technical field [0001] The invention relates to a four-cell metal tube for scientific research. Background technique [0002] The energy absorption characteristics of automotive structural parts during high-speed collisions are the basis of crash safety research. Thin-walled metal tubes are the basic structure of a car and the main energy-absorbing structure in a crash. When the thin-walled metal tube is impacted by axial load, it will produce different deformation modes to absorb and dissipate energy to ensure the safety of vehicles and passengers. Therefore, research on the energy absorption characteristics of thin-walled metal tubes during high-speed collisions is the basis for automobile crash safety. The research on thin-walled metal tubes at home and abroad mainly focuses on the energy absorption characteristics of square tubes and circular tubes, but there is no research on the impact energy absorption of conical tubes, especially the energy absorption characteristi...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01B21/32
CPCG01M17/0078G01B21/32
Inventor 刘小龙
Owner 成都贝恩云广告传媒有限公司
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