Method for evaluating dummy biological simulation degree in crash test

Abstract

The invention provides a method for evaluating the biosimulation degree of a dummy in a crash test. Quantitative indexes of the biosimulation degree of the dummy in the crash test are divided into three levels, wherein the first-level index is a biosimulation degree quantitative index value of each part of the dummy; the second-level indexes are simulation degree quantitative index values of injury indexes corresponding to all parts of the dummy; the third-level index is a simulation degree quantitative index value obtained by quantifying each damage index from different dimensions. Accordingto the invention, the dummy calibration test result under the same test working condition is associated with known real human body reference damage data, two methods of single-value analysis and timedomain curve analysis are utilized to quantify biological simulation degree indexes of each part of the dummy, each sub-index is further subjected to weighted calculation, and finally, an index valuefor evaluating the overall biological simulation degree of the dummy is obtained.

Description

technical field [0001] The invention belongs to the field of automobile crash tests, and in particular relates to a method for evaluating the biological simulation degree of a dummy in a crash test. Background technique [0002] In the car crash test, the crash test dummy, as a substitute for a real person, undertakes the function of measuring human injury during the collision process. It mainly measures various physical signals through various sensors installed inside to represent the impact of the car on the human body during the collision process. Therefore, the dummy in the crash test is an important measurement equipment to directly evaluate the safety performance of the car, and the biosimilarity of the dummy is directly related to whether the safety of the vehicle can be evaluated correctly, and thus also affects Whether the life and property of occupants or pedestrians can be effectively protected, so it is an important content in the study of automobile crash tests ...

AI Technical Summary

Problems solved by technology

[0003] Under the current technical conditions, the evaluation of the biological simulation degree of each part is generally carried out by the calibration test of each part of the dummy, and there is a lack of evaluation method for the overall biological simulation degree of the dummy in the crash test, which mainly has the following three problems: First, The calibration test of each part of the dummy cannot obtain quantitative results, but can only obtain qualitative evaluation results of conformity and nonconformity; second, there are multiple sensors in each part of the dummy, so multiple data channels will also be obtained in the calibration test and injury indicators, but currently each indicator is independently judged, and the overall situation of the dummy parts is not evaluated; third, the calibration test of each part of the dummy is relatively independent, and the comprehensive evaluation results of the biological simulation degree of the entire dummy cannot be obtained , to sum up, the current evaluation of the biological simulation of dummies lacks a quantitative evaluation method for the overall evaluation of crash dummies, and the biological simulation of different dummies cannot be directly compared horizontally, which ultimately leads to inaccurate evaluation of the results of automobile crash tests. Accurate Serious Problems

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