车身工艺同步工程中的支架结构分析与优化
Analysis and optimization of bracket structure in simultaneous engineering of car-body process
贺政斯 1邓继涛1
作者信息
- 1. 上汽通用汽车有限公司整车制造工程部,上海 201206
- 折叠
摘要
支架在车身产品设计中应用非常广泛,目前针对车身支架的结构分析主要集中在产品的性能评估上,而制造工况下支架结构的分析研究较少.文中提出了将有限元虚拟分析方法应用于车身工艺同步中的支架结构分析中,可在产品设计早期识别支架设计引起的制造质量风险.同时,介绍了在线冲孔、工装定位及零件安装3种工艺场景和对应的支架结构仿真方法及其结构分析仿真要求,并针对这3种工艺场景下的支架结构进行分析与优化,拓展了有限元分析在工艺同步工程中的应用场景.通过在产品早期阶段制造工程与产品工程协同,可有效识别支架在制造过程中的质量风险,避免支架在实物验证阶段更改,降低制造成本.
Abstract
Brackets are widely used in car-body design.Currently,the structural analysis on the car-body brackets focuses on performance evaluation of products,while little research is found under manufacturing conditions.In this article,the finite-ele-ment virtual analysis is conducted on bracket structure in simultaneous engineering of car-body process,which can identify the manufacturing quality risks caused by bracket design in the early stage of product design.At the same time,three processing sce-narios of online punching,fixture location,and component installation are introduced,along with the related simulation methods and requirements for bracket structure.Thanks to the analysis and optimization of bracket structure in these three processing sce-narios,the finite-element analysis can be widely applied in simultaneous engineering of car-body process.By collaborating with manufacturing engineering and product engineering in the early stage of product design,the manufacturing quality risks are identi-fied effectively,those changes in bracket design are avoided during the stage of prototype verification,and the manufacturing cost is reduced.
关键词
车身支架/同步工程/结构优化/有限元Key words
car-body bracket/simultaneous engineering/structure optimization/finite element引用本文复制引用
出版年
2024
NETL
NSTL
万方数据