Automobile b-pillar detection method based on safety performance
A detection method and safety performance technology, applied in the direction of vehicle testing, machine/structural component testing, measuring devices, etc., can solve problems such as the inability to detect the performance of automobile B-pillars, and achieve the effect of improving safety performance and light weight
Inactive Publication Date: 2016-03-02
TONGJI UNIV +1
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Problems solved by technology
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a safety performance-based automobile B-pillar detection method for solving the problem in the prior art that performance detection cannot be performed on the automobile B-pillar
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[0029] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0030] see figure 1 and figure 2 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed a...
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The invention provides a car B column detecting method based on safety performance. The method includes the steps of firstly, stably fixing a car B column; secondly, impacting the middle of the car B column 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 according to the acceleration variation curves acquired in the second step; fourthly, calculating to obtain deformation of the car B column according to the average acceleration so as to judge whether deformation is smaller than 210mm or not; fifthly, calculating to obtain crossbeam bearing capacity of the car B column according the average acceleration so as to judge whether the crossbeam bearing capacity is larger than 80KN or not; and sixthly, observing whether cracks occur on the car B column after impacting or not and whether welding points fail or not, and if no cracks occur, the welding points are effective, deformation is smaller than 210mm and crossbeam bearing capacity is larger than 80KN, the car B column is qualified. By the method which is a scientific testing method provided for car B column part purchasers, quality and performance of the car B column can be tested conveniently.
Description
technical field [0001] The invention relates to a method for detecting the performance of auto parts, in particular to a method for detecting the B-pillar of an automobile 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...
Claims
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IPC IPC(8): G01M17/007
Inventor 林建平朱西产马志雄董学勤李芳芳王灿马芳武
Owner TONGJI UNIV