Style-changed vehicle model vehicle body structure design method based on trunk door model change

Abstract

The invention provides a style-changed vehicle model vehicle body structure design method based on the trunk door model change. The method includes the following steps that engineering constraint and technological constraint are provided and used for constraining the trunk door model change of a style-changed vehicle model, wherein the engineering constraint comprises the total arrangement requirement identical to that of an original body in white, the vehicle body structure main section requirement identical to that of the original body in white and the trunk door performance requirement after the model is changed, and the technological constraint comprises satisfaction of the stamping and welding technological requirements for vehicle model collineation; whether the engineering constraint and the technological constraint meet the common condition of the original body in white or not is judged; if the engineering constraint and the technological constraint meet the common condition of the original body in white, a first draft of the trunk door model of the style-changed vehicle model is designed and generated; whether it can be guaranteed that the first draft of the trunk door model can be commonly used by the original body in white or not is judged; and if it can be guaranteed that the first draft of the trunk door model can be commonly used by the original body in white, the trunk door model is designed and verified in detail, and the vehicle body structure is developed synchronously.

Description

technical field [0001] The invention relates to the technical field of vehicle body structure design, in particular to a body structure design method for a modified vehicle model based on the shape change of the trunk door. Background technique [0002] The competition in the automobile market is becoming more and more fierce. The design of automobile body structure urgently needs to use a small amount of resources in a short period of time to create economic benefits that meet the requirements. It can not only effectively improve design efficiency, but also improve product performance and quality. Traditional modeling changes and related structural designs are limited by development experience and technical means. Modeling changes cannot be designed in parallel with body structure design. The development process is constantly repeating the cycle of "design, analysis, design verification, modification design, verification modification" , The developed products are rarely suc...

AI Technical Summary

Problems solved by technology

Traditional modeling changes and related structural designs are limited by development experience and technical means. Modeling changes cannot be designed in parallel with body structure design. The development process is constantly repeating the cycle of "design, analysis, design verification, modification design, verification modification" , the developed products are rarely successfully put into mass production at the first time

[0003] The traditional body structure design method is constrained by ergonomics, overall layout of the body, aerodynamics, manufacturing process, etc. Under the premise of ensuring the performance and reliability of the car, the change of the body shape requires systematic and complex design verification work. In the design and development stage, this work is repeated, resulting in a large amount of design changes, and it is difficult to shorten the product development cycle, which restricts the speed of automotive product replacement.

[0004] Traditional design verification requires accurate computer simulation and rapid prototypes. Prototypes for body shape changes and structural design verification cost millions or even tens of millions of dollars, accounting for a large part of the cost of automobile development, which is not conducive to Overall cost optimization for vehicle development

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