Dummy upper limb structure for side impact test

A side impact and dummy technology, applied in the field of automobile safety, can solve the problems of high price, high cost of repeated tests, less research on upper limb injuries, etc., and achieves the effect of simple structure and multi-data support.

CN112504692APending Publication Date: 2021-03-16AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-03-16

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Abstract

The invention discloses a dummy upper limb structure for a side impact test, which comprises skeletons. The skeletons comprise a big arm skeleton and a small arm skeleton, the big arm skeleton and thesmall arm skeleton are rotatably connected through an elbow joint, and each of the big arm skeleton and the small arm skeleton comprises an inner skeleton positioned on the inner layer and an outer skeleton coating the outer part of the inner skeleton; the inner skeleton and the outer skeleton are both made of composite materials, and the material strength and density of the outer skeleton are both larger than those of the inner skeleton. The dummy upper limb structure for the side collision test is simple in structure, and can simulate the upper limb condition of a human body more truly, sothat the upper limb injury condition can be fully reflected in a side collision environment, and more data support can be provided for designing a safer and more effective protection device.
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Description

technical field

[0001] The invention relates to the technical field of automobile safety, in particular to a dummy upper limb structure used for side impact tests. Background technique

[0002] The requirements for protecting the safety of drivers and occupants in side collisions are constantly increasing. Scholars at home and abroad have done a lot of research on occupant injuries in side collisions, but there are few studies on upper limb injuries. There are two main reasons. First, foreign advanced dummies are expensive and the cost of repeated tests is high. Second, the existing Hybrid III dummy cannot fully reflect the damage to a specific part of the occupant's body during the collision. Since there is a certain gap between the existing Hybrid III dummy upper limb structure and the real human body structure, it is necessary to design a relatively low-cost dummy upper limb structure that can be applied to side collisions. Contents of the invention

[0003] The purpos...

Examples

Embodiment Construction

[0020] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1~Figure 4 As shown, the upper limb structure of the dummy used in the side impact test of the present invention includes a bone and a skin and muscle layer (not shown in the figure) covering the outside of the bone.

[0022] The skeleton includes a big arm bone 1 and a small arm bone 2 , and the big arm bone 1 and the small arm bone 2 are rotationally connected through an elbow joint 3 . The human skeleton can be divided into two layers: compact bone on the outer layer and cancellous bone and bone marrow on the inner layer. The compact bone layer is very hard and mainly plays the role of supporting and protecting the internal tissues, while the cancellous bone and bone marrow mainly play the role of nutrient transport and information transmission. In order to better simulate the bone structure, the arm bone 1 and the for...