摘要
在汽车轻量化趋势下,车身的轻量化依然十分重要.分别从国内外研究现状、结构设计、结构分析、质量对比分析几方面研究汽车上车身局部结构的轻量化.以本田思域2016款车身结构为研究对象,采用超高强钢辊压成型三维管梁替换车身A柱、车顶纵梁内部热成型冲压加强板.参考国标GB 26134-2010施加车顶抗压试验工况,保证优化后结构的车顶抗压性能与原结构相当,通过对比质量,得出集成三维管梁的新设计对车身的轻量化效果.研究结果表明:当三维管梁板材厚度为1 mm、材料为1700 MPa马氏体钢时,新结构弯曲刚度和强度性能与原结构基本一致,且实现车身减重3.23 kg,轻量化效果明显.
Under the tendency of automotive lightweight,the Body in White(BIW)light weighting job is still significantly meaningful.From aspects of the domestic and abroad research status,structure design,structural analysis,mass comparison analysis,the lightweight of the local structure on car upper body was studied.By incorporating ultra-high-strength steel roll forming 3D tube into Honda Civic 2016 A-pillar and roof rail structure,the original hot stamping reinforcements were replaced.Based on the roof crush test referring to GB 26134-2010,the roof crush performance of the optimized structure was need to be equivalent to the original structure.By comparing the quality,the lightweight effect of the new design with 3D tube inside of the body was obtained.The results prove that new structure with 1 mm gauge and 1700 MPa Martensitic steel 3D tube shows equal bending stiffness and strength with original structure.A significant mass reduction of 3.23 kg per car can be achieved.
作者
程刚
于翔
宁普才
CHENG Gang;YU Xiang;NING Pucai(School of Automotive Studies,Tongji University,Shanghai 201804,China;College of Mechanical and Electronic Engineering,Northwest A&F University,Xianyang 712100,China)
出处
《上海工程技术大学学报》
CAS
2022年第2期176-181,共6页
Journal of Shanghai University of Engineering Science
关键词
先进高强钢
辊压成型
三维管梁
轻量化
ultra-high strength steel
roll forming
3D tube
lightweight
