Modeling method and system for body-in-white model

Abstract

The invention provides a body-in-white model modeling method, which comprises the following steps of: constructing parameterized concept body module data without assembly information and parameterized assembly data containing the assembly information according to a CAE finite element model; constructing a storage structure tree of the concept vehicle body modular data and the assembly data to correspondingly store the concept vehicle body modular data and the assembly data respectively; according to the concept vehicle body design plan, extracting data from the two structure trees, assembling to obtain a body-in-white model, and performing parameter adjustment on the body-in-white model; and when the body-in-white model after parameter adjustment meets the design plan requirement, automatically generating a CAE simulation model, and obtaining a final body-in-white model after the simulation performance is verified to be qualified. By implementing the method, the problems existing in an existing implicit parameterization body-in-white modeling method can be solved, the repeated modeling work is reduced to the maximum extent, the development speed and efficiency of the conceptual design stage of the body-in-white are improved, and the complete parameterization design and the forward development effect are achieved.

Description

technical field [0001] The invention relates to the field of automobile body structure design, in particular to a body-in-white model modeling method and system. Background technique [0002] At present, the modeling method used by vehicle manufacturers in the concept design stage of the body is to first create a detailed CAD body model, and then convert the CAD model into a CAE simulation analysis model for performance analysis and verification, but the modeling cycle of this method is long. When changing the design scheme, it is necessary to repeatedly change the geometric model and CAE simulation analysis model, which not only leads to large manpower investment, but also takes a long time to calculate the scheme, and the designer is also limited by design experience and methods, and needs to achieve the expected optimization effect through trial and error. Causes blindness and uncertainty in the design. [0003] In order to overcome the problems of the above-mentioned co...

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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a body-in-white model modeling method and system, which can overcome the problems existing in the existing implicit parameterized body-in-white modeling method, and can minimize repetitive modeling work, improve the development speed and efficiency in the conceptual design phase of the body-in-white, and achieve full parametric design and positive development effects

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