4-DOF dummy model knee-joint mechanism for body bump protection test

A technology of collision protection and degree of freedom, applied in the direction of manipulators, manufacturing tools, joints, etc., can solve the problems of indirect application and achieve high bio-simulation effects

Active Publication Date: 2006-09-06
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This two-degree-of-freedom lower limb module is only suitable for evaluating the side collision between a motor vehicle and a standing pedestrian, and is not directly applicable to complex conditions such as side oblique collision, front collision, rear collision and pedestrian walking posture.

Method used

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  • 4-DOF dummy model knee-joint mechanism for body bump protection test
  • 4-DOF dummy model knee-joint mechanism for body bump protection test
  • 4-DOF dummy model knee-joint mechanism for body bump protection test

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Embodiment Construction

[0026] The principle, specific structure and implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] figure 1 It is the design assembly drawing of the present invention, figure 2 It is an exploded diagram after dividing the design into four parts, which are thigh module assembly 1, main moving block assembly 2, auxiliary moving block assembly 3 and calf module assembly 4. The composition and assembly relationship of the four parts will be explained in sequence below. For the convenience of explanation, when the human body is standing, the natural front-back direction is defined as the front-back direction, the left-right direction is defined as the lateral direction of the knee joint, and the front-back rotation freedom of the knee joint is The degree of freedom that the human body has when doing natural knee-bending movements.

[0028] image 3 is a structural diagram of the thigh module assembly 1. ...

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Abstract

The invention relates to a four-freedom artificial knee joint used in collision protection test, belonging to the passenger protection technique. The invention comprises: a thigh module, a main moving module, an auxiliary moving module, a calf module and four cables. Wherein, said modules are assembled and via rubber block, spring and cables to realize the motion mechanics and physical property of Europe passenger artificial knee joint, while it adds two freedom degrees that rotating forwards and backwards, to realize more functions out of the EEVC artificial knee joint. And the added two freedom degrees meet the physical properties of America THOR face-collision artificial knee joint. The invention has high biological imitation, and it can apply the collision tests in complex conditions.

Description

technical field [0001] The invention relates to the design of a dummy used in an automobile collision test, in particular to the design of a knee joint mechanism of a dummy, and belongs to the technical field of pedestrian protection in the collision between a pedestrian and a vehicle. Background technique [0002] Automobile traffic accidents are a major public hazard that threatens the safety of human life. Pedestrian accidents account for a high proportion of automobile traffic accidents. To solve this problem, Europe and Japan have developed dummy modules for pedestrian collision protection. [0003] After years of research, the European Committee for the Improvement of Vehicle Safety (EEVC) has successively formulated and promulgated the WG10 and WG17 standards. These two standards use its self-developed pedestrian module test to test and evaluate the damage of vehicles to pedestrians' lower limbs, hips and heads. . [0004] However, the pedestrian leg module develope...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J17/00
Inventor 周青杜汇良迈克尔·奎德雷鹏张金换黄毅
Owner TSINGHUA UNIV
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