基于概念设计的车身接头等效简化方法

An Equivalent Simplification Method Of Body Joint Based On The Conceptual Design

为了在概念设计阶段构建更为精准有效的车身框架模型,文章提出一种以梁、刚性单元和扭转弹簧组合的车身接头等效简化方法,并提出了一种计算接头刚度的新方法。并验证了该方法的正确性。使用该方法简化的车身接头,车身框架的静态刚度偏差在2%左右。这种车身接头的等效简化方法,具有计算效率高、等效精度高以及操作简单等优点,可以很好地运用到车身前期概念设计工作中。

In order to build more accurate and effective body frame model in concept design phase,a body joint equivalent simplification method is proposed in this paper which include beam,RBE2 and spring mesh elements.This paper presents a relevant method to compute the joint properties,and verify the correctness of the proposed method.The static stiffness deviation of the simply joint body is about 2%.It can be applied to the conceptual design of the car body in the early stage.