Detection method of automobile anti-collision beam based on safety performance

Abstract

The invention provides a car anti-collision beam detecting method based on safety performance. The method includes the steps of firstly, fixing two ends of a car anti-collision beam with an energy absorption box; secondly, impacting the two ends of the car anti-collision beam with a knocking hammer which is provided with two acceleration sensors, and acquiring acceleration variation curves of the knocking hammer during impacting through the two acceleration sensors; thirdly, acquiring average acceleration a according to the acceleration variation curves acquired in the second step; fourthly, calculating to obtain deformation of the car anti-collision beam according to the average acceleration a so as to judge whether deformation is smaller than 170mm or not; fifthly, calculating to obtain crossbeam bearing capacity of the car anti-collision beam according the average acceleration a so as to judge whether the crossbeam bearing capacity is larger than 40KN or not; and sixthly, if no breakage of the car anti-collision beam occurs, welding points are effective, deformation is smaller than 170mm and crossbeam bearing capacity is larger than 40KN, the car anti-collision beam is qualified. By the method which is a scientific testing method provided for car anti-collision beam part purchasers, quality and performance of the car anti-collision beam can be tested conveniently.

Description

technical field [0001] The invention relates to a method for detecting auto parts, in particular to a method for detecting an automobile anti-collision beam based on safety performance. Background technique [0002] The main function of the car body is to protect the driver and form a good aerodynamic environment. A good body can not only bring better performance, but also reflect the personality of the owner. In terms of form, the car body structure is mainly divided into two types: non-load-bearing and load-bearing. The firmness and anti-collision of the car body are the issues that car owners are more concerned about, and they are also a performance index of car quality. At present, in the field of automobile manufacturing, safety performance testing methods are mainly aimed at complete vehicles and body-in-white. It is difficult to consider the role and impact of individual components, and there is a lack of corresponding assessment systems for component procurement or...

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a safety performance-based detection method for automobile anti-collision beams, which is used to solve the problem that performance detection cannot be performed on automobile anti-collision beams in the prior art

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