Automobile B column section design method and computer readable storage medium

Abstract

The invention relates to an automobile B column section design method and a computer readable storage medium. The automobile B column section design method comprises the following steps: S1, obtainingthe section inertia moment Ia and the full-plastic section bending moment Ma of each section of the upper middle portion of a B column of a target basic automobile model; S2, establishing a B-columnsection finite element model of the target basic vehicle model according to the section inertia moment Ia and the full-plastic section bending moment Ma; S3, performing finite element simulation analysis on the B column section finite element model to obtain the maximum contact force Fa between the pressing plate and the target basic vehicle model under the jacking working condition, and determining the roof compressive strength A of the target basic vehicle model according to the maximum contact force Fa; and S4, according to a comparison result of the roof compressive strength A of the target basic vehicle model and a first preset threshold T1, determining attribute parameters of each section of the final B column. By implementing the method, a large amount of later repeated work causedby blind design of the section of the B column can be avoided, and view influence caused by unreasonable design of the section of the B column can be avoided.

Description

technical field [0001] The invention relates to the technical field of automobile B-pillar section design, in particular to an automobile B-pillar section design method and a computer-readable storage medium. Background technique [0002] At present, domestic design of B-pillar section mainly considers the 50km / h MDB working condition in CNCAP and the rigidity requirements of the body-in-white itself, and the top pressure performance only needs to meet the requirements of the national standard. In recent years, CIASI has begun to examine the roof compression performance, and put forward higher requirements for the roof compression performance of the car body. Under the top pressure condition, the B-pillar in the car body structure is the main load-bearing component, so the design of the B-pillar should first consider the compression performance of the roof. Based on this consideration, the present invention proposes a method for designing the B-pillar section of an automobi...

AI Technical Summary

Problems solved by technology

The above method only focuses on the material, thickness, and cross-sectional size of the B-pillar, but ignores the comprehensive evaluation of its essential attributes, resulting in repeated attempts, which is not only inefficient, wastes manpower and material resources, and may cause unreasonable cross-sectional design of the B-pillar to affect the field of view

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