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Quick modeling method for artificial human chest structure in car side collision test

A modeling method and vehicle-side technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of low calculation efficiency of finite element models, achieve low calculation efficiency, improve calculation efficiency, and reduce calculation the effect of time

Inactive Publication Date: 2018-03-06
天津瑷睿赛福科技有限公司
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Problems solved by technology

[0005] The object of the present invention is a method for quickly modeling the chest structure of a car side impact test dummy, which solves the problems of low calculation efficiency of the finite element model in the prior art

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  • Quick modeling method for artificial human chest structure in car side collision test
  • Quick modeling method for artificial human chest structure in car side collision test
  • Quick modeling method for artificial human chest structure in car side collision test

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Embodiment Construction

[0039] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0040] see Figure 1 to Figure 5 Shown, a kind of automobile side impact test dummy chest structure rapid modeling method of the present invention comprises:

[0041] 1. A rapid modeling method for the chest structure of a car side impact test dummy, characterized in that: comprising:

[0042] (1), constructing a simplified model of the outer contour of the chest;

[0043] Using medical imaging technology, in view of the mechanical properties of the soft tissues on both sides of the human chest, elastic materials are selected to establish an approximate geometric model of the outer contour of the chest with only one layer of skin structure, without considering the influence of muscle structure on the impact response, such as figure 2 , image 3 shown.

[0044] (2), build chest internal structure equivalent mo...

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Abstract

The invention relates to a quick modeling method for an artificial human chest structure in a car side collision test, and belongs to the field of car collision safety. The method comprises the stepsof 1, building a simplified chest outer contour model: by utilizing a medical image technology and human chest soft tissue characteristics, building a chest outer contour approximate geometric model;2, based on the geometric model, performing equivalent approximate processing on human thoracic spine, ribs and tissue structures in thoracic cavity by utilizing a mechanical equivalent thought according to a car side collision condition; 3, performing finite element grid division and material attribute assignment on the structures to generate a passenger chest initial finite element model under the side collision condition; and 4, building a passenger chest side collision structure optimization agent model, and finally building a quick modeling model of the artificial human chest structure inthe car side collision test. The quick modeling model of the artificial human chest structure, built by the method, improves the calculation efficiency by more than 3 times and provides quick and effective reference and data support for modeling in a car safety concept design stage and car passive safety performance analysis.

Description

technical field [0001] The invention relates to a rapid modeling method for the chest structure of a car side collision test dummy, which belongs to the field of car collision safety. Background technique [0002] Automobile is one of the most important inventions of mankind in the 20th century. While automobiles bring convenience to human transportation and life, the ensuing automobile traffic accidents have also begun to endanger human life. Therefore, occupant injuries in traffic accidents Degree studies are becoming more and more important. Human chest injuries are very common in vehicle traffic accidents. Studies have shown that 30% of the deaths caused by vehicle traffic accidents are caused by chest injuries. Chest injuries account for 13% of AIS minor to moderate injuries, and AIS severe and fatal injuries. Injury accounts for 29%, and is one of the main causes of serious injury and death caused by traffic accidents, while chest injury ranks second in fatal and seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23Y02T10/40
Inventor 徐涛吉野辰萌梁平谢书港闫磊
Owner 天津瑷睿赛福科技有限公司
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