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Dummy lower limb impact test method

A technology of impact test and dummy, which is applied in impact test, vehicle test, machine/structural component test, etc. It can solve the problems of inability to reflect the calf injury of the dummy, and cannot effectively reflect the injury value of the dummy’s calf, so as to achieve shortening Development time, effect of reducing test cost

Active Publication Date: 2017-06-30
CHONGQING CHANGAN AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

However, this test method can only obtain the stiffness information of the instrument panel, and cannot reflect the damage to the lower leg of the dummy
The other is to use the thigh and calf modules of the dummy, fix the ankle of the dummy, and impact the end of the thigh. This method can reflect the damage value of the dummy's thigh and knee to a certain extent, but it cannot effectively reflect the dummy's calf damage value

Method used

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  • Dummy lower limb impact test method

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with accompanying drawing.

[0039] Such as figure 1 The dummy lower limb impact test method shown in the figure uses dummy lower limb impact test equipment, which includes impact test object device, dummy lower limb 11, guide rail 8, sliding device, foot loading device, loading device , stop device 4, sensor group and host computer.

[0040] The impact test object device includes a fixed bracket, and a body part 1 fixed on the fixed bracket, a vehicle instrument panel 2 and a floor 3 for simulating the state of the instrument panel assembly on the vehicle.

[0041] The dummy lower limb 11 adopts a unilateral dummy lower limb, which includes a thigh, a lower leg connected to the thigh, and a foot connected to the lower leg, for simulating the posture of the corresponding leg of the dummy in the vehicle test.

[0042] The guide rail 8 is arranged horizontally along the left-right direction, and the gu...

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PUM

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Abstract

The invention discloses a dummy lower limb impact test method. According to the method, dummy lower limb impact test equipment is adopted and includes an impact test object device, a dummy lower limb, a guide rail, a sliding device, a foot loading device, a loading device, a stopping device, a sensor group and an upper computer. The method includes the following steps of: 1, preparation work; step 2, loading; step 3, releasing; and step 4, data collection and analysis. With the dummy lower limb impact test method of the invention adopted, a dynamic impact process of the dummy lower limb, a vehicle dashboard and floor can be accurately simulated; dummy lower limb damage value data can be acquired in a test process, so that damage to the lower limb of a passenger which caused by the vehicle dashboard, the floor, a foot pad and the like can be quickly assessed.

Description

technical field [0001] The invention belongs to the automobile collision safety technology, in particular to a dummy lower limb impact test method. Background technique [0002] Today, when automobile safety is increasingly concerned by the society, providing all-round protection for the occupants in the car is the goal that automobile manufacturers strive to achieve. The crash safety performance of a car is not only related to the structural design of the car body, but also closely related to the structure and materials of each interior surface in the car. When a car has a frontal collision, as the body gradually deforms and stops, the occupants will move forward relative to the body, the lower limbs of the front occupants will collide with the instrument panel, and the feet of the front occupants will contact the body floor and carpet during the collision. Improper board rigidity, carpet and foot pad shape and rigidity will cause occupant's lower limb injury. In various ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08G01M17/007
Inventor 姚远董立强
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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