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Honeycomb aluminum barrier and design method and application thereof

A design method and technology of honeycomb aluminum, applied in the field of vehicle crash test, can solve the problem of not designing honeycomb aluminum barriers, etc., and achieve the effect of improving reliability

Pending Publication Date: 2022-02-15
CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to more truly reflect the collision situation of road vehicles in my country and make the crash test results closer to reality, the development, verification and application of the performance of honeycomb aluminum barriers based on Chinese characteristics are of great significance to improving the safety level of automobile collisions and reducing the occupant casualties in actual accidents. Positive social significance, however, there is currently no scientific method to design honeycomb aluminum barriers

Method used

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  • Honeycomb aluminum barrier and design method and application thereof
  • Honeycomb aluminum barrier and design method and application thereof
  • Honeycomb aluminum barrier and design method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 It is a flowchart of a method for designing a honeycomb aluminum barrier provided in this embodiment, and the method includes the following steps:

[0036] S110. According to the collision stiffness of the whole front end and each area when the vehicle collides, design the barrier of the first version.

[0037] Among them, when the vehicle collides, the collision stiffness of the entire front end and each region can be tested with a real vehicle (such as an SUV model), and the collision force can be calculated. The regions are preferably divided into 6 regions. The calculation formula of collision force is as follows: Among them, F(j)(k)wavg is the weighted average value of the collision force corresponding to the displacement point k in the divided area j; Collision force, j takes values ​​1, 2, 3,...6, k takes values ​​0, 5, 10,..., 300 (calculated at intervals of deformation of 5mm); N i is the sales volume of model i, and n is the total number of models...

Embodiment 2

[0096] see Figure 14 , this embodiment provides a honeycomb aluminum barrier, which is obtained by using the design method of the honeycomb aluminum barrier in Example 1, and the barrier includes a back plate 1, an energy buffer layer 2, a crush layer 3, The middle package plate 4, the bumper layer rear plate 5, the bumper layer 6 and the bumper layer front plate 7; the middle package plate 4 includes an upper package plate 401, a lower package plate 402 and a bottom package plate 403 from top to bottom;

[0097] The crushing layer 3 includes an upper energy-absorbing area and a lower energy-absorbing area, and the upper energy-absorbing area is sequentially from left to right a first energy-absorbing area 301, a second energy-absorbing area 302 and a third energy-absorbing area 303. The energy-absorbing areas of the lower layer are, from left to right, the fourth energy-absorbing area 304, the fifth energy-absorbing area 305 and the sixth energy-absorbing area 306;

[0098]...

Embodiment 3

[0104] This embodiment provides an application of the aluminum honeycomb barrier described in Embodiment 2 in a vehicle crash test. Applying the above-mentioned honeycomb aluminum barrier to the vehicle collision test can improve the reliability of the test and improve the safety level of the vehicle collision.

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Abstract

The invention relates to the field of vehicle collision testing, and in particular relates to a honeycomb aluminum barrier and a design method and application thereof. The design method comprises the following steps: designing a primary barrier according to the collision stiffness of the whole front end and each area during vehicle collision; performing a collision test on the primary barrier to verify the mechanical property of the primary barrier; designing an improved barrier according to a verification result; and carrying out a collision test on the improved barrier, and verifying the mechanical property of the improved barrier until the mechanical property meets the requirement. By adopting the design method, the honeycomb aluminum barrier with reliable mechanical properties can be obtained.

Description

technical field [0001] The invention relates to the field of vehicle collision testing, in particular to a honeycomb aluminum barrier and its design method and application. Background technique [0002] As an important test device in the crash test, the side deformable barrier represents the stiffness level of the crashed vehicle and is the main scale of the crash stiffness. When formulating the crash test standards in the region, Europe and the United States have developed and applied deformable barriers that conform to the characteristics of vehicles in the region to simulate frontal and side collisions of vehicles. [0003] In order to more truly reflect the collision situation of road vehicles in my country and make the crash test results closer to reality, the development, verification and application of the performance of honeycomb aluminum barriers based on Chinese characteristics are of great significance to improving the safety level of automobile collisions and red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/0078
Inventor 朱海涛张向磊杨佳璘刘磊李梦琦张斌何成
Owner CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD