DMU整车验收的方法

Method of DMU Vehicle Check-accept

在现代轿车开发早期阶段,需要计算设计模型的静态间隙,及时发现零件尺寸设计缺陷,并进行改进,作到极大地提高零件设计精度,减少模具试制数量。随着CAX技术的发展,通过DMU(Digital-Mock-Up,数字装配)整车验收,CAD数据模型之间的空间关系得到了校核,提高了CAD模型的设计精度,保证了模具的制造精度。本文探讨了如何进行DMU整车验收工作,提出了验收方法,制定了验收流程,并应用实例进行了流程验证,为汽车企业设计开发部门整车开发工作中的DMU整车验收提供了一个很有价值的实用方法。

In the early stage of modern car development, it's necessary to calcu late the static clearance of design model and to find design defects of parts di mensions and correct them in time. With the help of DMU, the precision of compon ents can be improved and quantity of trial-manufacture models can be cut down. T hrough DMU the space-relations among the CAD models of components can be checked and calculated, and at the same time, the manufacture precision models can be g uaranteed. This article discusses how to work with DMU and puts forward the veri fication method and the new flow for checking the vehicles, and uses the example to validate the flow. The DMU provides an efficient and practical way to check-accept vehicle for the vehicle developing department.