重庆理工大学学报2025，Vol.39Issue(11)：150-159,10.DOI:10.3969/j.issn.1674-8425(z).2025.06.018
汽车碳纤维复合材料中地板铺层设计及工程化优化应用
Design and engineering optimization application of floor paving in automotive carbon fiber composites
摘要
Abstract
To improve the performance of the body-in-white automobiles and their overall weights,the cost of the flooring materials,processes and structures of the body-in-white automobiles have to be reduced.Based on the failure criterion of composite materials,an optimal design method of partitioned carbon fiber composite floor is proposed.First,the static performance analysis model of the body-in-white vehicles is built,and the correctness of the model is verified by experiments.Then,the quasi-static performance test of T700/WP-R2300 is conducted,and the mechanical properties of the carbon fiber composite material are determined.Finally,the carbon fiber padding is optimized by free size optimization,ply thickness optimization and ply sequence optimization.Comparative analysis shows the bending stiffness of the middle floor of the carbon fiber composite material is increased by 208.8％,the torsional stiffness is up by 111.4％,and the weight of the middle floor is down by 40％after optimization.The bending stiffness of the floor rises by 5.9％,the torsional stiffness by 10.5％,and the first-order bending frequency and torsional frequency is up by 9.0％and 10.8％respectively.关键词
汽车中地板/碳纤维复合材料/分区铺层设计/工程化裁剪/多目标优化Key words
automotive flooring/carbon fiber composites/zonal layup design/engineering cutting/multi-objective optimization分类
交通工程引用本文复制引用
徐立友,安笑博,张帅,赵晟杰,郭加豪,吕星浩..汽车碳纤维复合材料中地板铺层设计及工程化优化应用[J].重庆理工大学学报,2025,39(11):150-159,10.基金项目
国家自然科学基金项目(52202437) （52202437）
全国重点实验室开放基金项目(GZ2024A03-ZZU) （GZ2024A03-ZZU）
国家重点研发计划项目(2022YFD2001203) （2022YFD2001203）
河南省科技攻关项目(242102241055) （242102241055）
河南省重大科技专项(221100240400) （221100240400）
河南省留学人员科研项目(17500006) （17500006）
"科创中原"汽车轻量化产学研协作创新基地项目(2024KCZY315) （2024KCZY315）
