DOE-based optimization method for anti-collision performance of front bumper beam of automobile

Abstract

The invention discloses a DOE-based optimization method for the anti-collision performance of a front bumper beam of an automobile. The invention belongs to the technical field of automobile front bumper beam structure design. The optimization method comprises the following steps: establishing a three-point bending crushing model; obtaining contact force curves of the two kinds of front bumper crossbeams and taking a contact force peak value of rolling the front bumper crossbeams as a target; the aluminum alloy front bumper beam with the maximum weight reduction proportion is brought into thewhole vehicle working condition to be verified; setting a variable range and response and optimizing calculation; substituting the scheme selected by the optimization calculation into the whole vehicle working condition verification to obtain an optimal scheme; the invention has the following beneficial effects. According to the optimization method, a simulation model is compared with a test model; simulation model is optimized, according to the method, multiple sets of variables and responses are subjected to optimization calculation, the obtained scheme is repeatedly verified, the optimal scheme is finally obtained, the efficiency of model building and optimization calculation is high, the obtained optimization result of the front bumper beam is more reliable, powerful data support is provided for production design of the front bumper beam, and the product development cost of an enterprise is saved.

Description

technical field [0001] The invention relates to the technical field of structural design of an automobile front bumper, in particular to a method for optimizing the anti-collision performance of an automobile front bumper based on DOE. Background technique [0002] DOE (Design of experiment design) technology seeks key factors and controls related factors through quantitative analysis of product quality and process parameters. According to actual needs, identify and select different types of experimental designs, design experimental steps, find out how to control various influencing factors, and exchange for the greatest benefits with the least investment, so as to improve product quality and make it more popular in industrial production and engineering design. can play an important role. At the same time, DOE has the advantages of reducing the test cost, shortening the product test cycle and prolonging the product life. After a reasonable DOE, the aluminum alloy front bump...

AI Technical Summary

Problems solved by technology

[0003] During the frontal collision of the vehicle, the front beam is the key sheet metal part. If the front beam is bent earlier, it is easy to cause insufficient crushing of the energy-absorbing box and the longitudinal beam, which will affect the deformation stability of the vehicle.

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