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Human head impacting test device

A technology of impact test and head, applied in the field of human head impact test device, can solve problems such as inconsistency, and achieve the effect of avoiding secondary collision, good repeatability and ensuring repeatability

Inactive Publication Date: 2013-07-10
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned devices are tested, the load condition of the human head is not consistent with the free state of the human head in real traffic accidents, and the influence of the neck on the response of the head is also ignored.

Method used

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Experimental program
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Embodiment Construction

[0046] The following will be combined with Figure 1-6 The specific technical solutions of the present invention are described in detail.

[0047] Such as figure 1 As shown, the human head impact test device includes a support 1 fixed on the ground, a fixed pulley mechanism 7 and a lifting mechanism 8 installed on the top of the support 1, a speed control mechanism 5 installed on a column of the support; 1 internal sample hanging basket 9 .

[0048] Wherein, lifting mechanism 8 lifts impact mechanism 6 through rope, fixed pulley mechanism 7 and electromagnet 605;

[0049] Two parallel guide rails 2 are arranged at the front end of the bracket 1, so that the impact mechanism 6 moves vertically up and down along the two parallel guide rails 2 through the linear bearing 603 under the action of the lifting mechanism 8, so as to ensure the repeatability and controllability of the impact position of the impact hammer 606 sex.

[0050] Such as Figure 2-3 As shown, the sample ha...

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Abstract

A human head impacting test device comprises a support, an impacting mechanism, a lifting mechanism, a sample hanging basket, a head hanging bag and the like. The lifting mechanism is installed at the top of the support, and the lifting mechanism is connected with an electromagnet through a lifting steel rope; a sliding block is embedded in an upper beam of the support and is connected with the sample lifting basket suspended inside the support; a travel switch and a speedometer are installed on a front beam on one side of the support; a buffering energy-absorption device is installed on a support base; and the head lifting bag is suspended on the upper beam of the support, and the impacting mechanism makes two guide posts vertically installed on the support as a guide mechanism, and vertical impacting is achieved. The human head impacting test device is simple and reasonable in structure and convenient to operate; an impacting object collides with the buffering energy-absorption device after impacting the head, the buffering energy-absorption device can automatically rise in a facilitating mode, therefore secondary collision is avoided, and data collection is reliable; and real load characteristics of the human body during impacting are simulated through a spring hanging bracket and the lifting bag, so that test results are more valuable.

Description

technical field [0001] The invention mainly relates to a human body injury biomechanical test equipment, in particular to a human head impact test device. Background technique [0002] Due to limitations in ethics, storage and transportation, etc., it is difficult to obtain human samples, and it is also difficult to carry out biomechanical tests in this area. How to use limited samples to obtain comprehensive and effective test data is very important. [0003] At present, some human head impact tests have been carried out abroad, mainly by removing the head or fixing the torso. Yoganandan et al. (1995) removed the head and fixed it on the experimental equipment to conduct experiments using the impact head, and the head was fixed during the experiment; Verschueren et al. (2007) and Delye et al. (2007) are also The head is removed and installed on a freely rotating swing arm, and the impact head is used to hit the head. In the experiment, the head can rotate around the cente...

Claims

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Application Information

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IPC IPC(8): G01M7/08
Inventor 张冠军曹立波白中浩
Owner HUNAN UNIV
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