Correction method for chest compression deformation amount of dummy in collision test

Abstract

The invention provides a correction method for a chest compression deformation amount of a dummy in a collision test. The correction method comprises the following steps of: S1, defining a dummy chestimpact test point, namely taking a measurement point, mapped to a dummy waistcoat along an X axis, of a measurement point of a dummy chest compression deformation amount measurement sensor as a measurement origin P0; S2, selecting a plurality of test points deviating from the measurement origin in the vertical direction of a dummy sagittal plane along a Z-axis direction in the dummy sagittal plane, wherein P is the distance from the test points to the measurement origin P0, and the distances between the test points are equal; and S3, conducting pendulum bob impact tests on all the testing points, so that the chest of the dummy generates a compression deformation amount D. The correction method for the chest compression deformation amount of the dummy in the collision test is simple to operate, sufficient in theoretical basis, simple in test logic and easy to operate,can quickly and accurately compare and accurately correct the chest compression deformation amount of the dummy after collision, and provides a technical support for accuracy and fairness of automobile safety laws and regulations and new automobile evaluation regulations.

Description

technical field [0001] The invention belongs to the technical field of detection, in particular to a method for correcting the chest compression deformation of a crash test dummy. Background technique [0002] Crash test dummy is the most widely used mechanical dummy model at present. This series of mechanical dummy is used in the current automobile safety regulations and NCAP (New Car Assessment Program) system in various countries to evaluate the safety of passenger cars. Evaluate. For example, the US FMVSS208, European ECE R94, Japanese TRIAS, and my country’s GB11551-2014 in the current regulations, the current NCAP system includes US-NCAP, Euro-NCAP, J-NCAP and my country’s C-NCAP. Humans assess the safety of the front seat of the vehicle. [0003] According to NASS data in the United States, the proportion of chest injuries in road traffic accidents is as high as 26.7%, second only to the head. Considering the seriousness of chest injuries, the protection of chest sa...

AI Technical Summary

Problems solved by technology

However, most regulations and NCAP do not specify the specific wearing position of the seat belt: such as FMVSS208, ECER94 and Euro-NCAP, J-NCAP, C-NCAP, etc., only A-NCAP specifies that the upper edge of the seat belt must not exceed Adjust the bolt holes on the top of the dummy, this is only a technical specification from the perspective of how to reduce the test error

Due to the irreversibility of the crash test, when the car crash test is over, the inaccuracy of the dummy chest evaluation results caused by the deviation of the seat belt wearing position from the chest compression deformation measurement point will affect the accuracy and fairness of the car safety performance evaluation. Sex presents great challenges

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