机电工程技术2025，Vol.54Issue(1)：17-21,91,6.DOI:10.3969/j.issn.1009-9492.2025.01.003
基于成形轨迹参数的变截面结构件边缘起皱影响分析
Influence Analysis of Edge Wrinkling in Variable Cross-section Structural Parts Based on Forming Trajectory Parameters
摘要
Abstract
When flexible roll forming parts with bending characteristics,the edges of the sheet are prone to wrinkling,which affects the product performance and assembly of the formed structural parts.Based on the forming trajectory of the arc line,the trajectories are broken down to get the characteristic elements in the forming trajectory.The relationship between parameters are explored such as line length,arc radius,and web width,and edge wrinkling phenomenon.ABAQUS is used to complete 32 simulation experiments and uses Python to preprocess the simulation results to obtain edge wrinkling values.Subsequently,the Spearman correlation coefficient is used for edge wrinkling factor analysis,and regression prediction is made based on wrinkling factors.The experimental results show that the concave arc radius,minimum web width,convex arc radius,web width difference,and maximum web width positively correlate with edge wrinkling,with positive correlation coefficients of 0.03,0.13,0.28,0.34,and 0.42,respectively.Moreover,the maximum edge wrinkling is more likely to occur in the convex arc area;the board's straight-line length and tangent line length are negatively correlated with edge wrinkling,with negative correlation coefficients of-0.08 and-0.21,respectively.Linear transition connections can effectively reduce edge wrinkling.The existing trajectory parameters have poor regression prediction performance for edge wrinkling,and further supplementation of trajectory features is needed to increase the experimental dataset.关键词
柔性辊压成形/边缘起皱/变截面/斯皮尔曼相关性系数Key words
flexible roll forming/edge wrinkling/variable cross-section/Spearman correlation coefficient分类
矿业与冶金引用本文复制引用
郭俊朗,刘江,胡鑫宇,熊自柳,肖骏峰,孙勇..基于成形轨迹参数的变截面结构件边缘起皱影响分析[J].机电工程技术,2025,54(1):17-21,91,6.基金项目
深圳市科技创新委员会(JCYJ20220818103200001,ZDSYS20210813095534001,JCYJ20210324123202008,JCYJ20210324115412035) （JCYJ20220818103200001,ZDSYS20210813095534001,JCYJ20210324123202008,JCYJ20210324115412035）
广东省应用科学技术研究发展计划(2022A1515010363,2021A1515110880) （2022A1515010363,2021A1515110880）
深圳市龙华区数智化成形系统装备协同创新平台(深龙华科创科计字(2023)42号流水号:J10M00792305290004) （深龙华科创科计字(2023）
中南大学国家重点实验室高性能复杂制造(Kfkt2021-05) （Kfkt2021-05）
