摘要
为研究农用拖拉机挡泥板在弯曲成形过程中的起皱影响因素,采用了Dynaform有限元分析软件模拟研究了不同材料、厚度及有无拉延筋等情况,并进行了分析对比。结果表明:分别使用铝合金6061、镀锌钢DQSK、低碳钢B170P1作为板料进行弯曲时,出现了不同程度的起皱情况,其中铝合金6061几乎没有起皱和破裂,低碳钢B170P1比镀锌钢DQSK起皱少,但是两者均有不同程度的破裂;在相同材料的基础上适当的增加材料厚度,能够减少起皱与破裂;模拟结果表明拉延筋能够极大程度地减少起皱与破裂。实验可为有效减少和避免起皱与破裂、提高农用拖拉机挡泥板的使用性能及寿命提供参考。
In order to study the influencing factors of corrugations in the bending process of farm tractor fender,the finite element analysis software Dynaform was used to simulate and study the different materials,thickness and whether there is a drawing bar,and then to make analysis and comparison.The results show that when aluminum alloy 6061,galvanized steel DQSK and mild steel B170P1 are used as sheet material for bending,there are different degrees of wrinkling.Aluminum alloy 6061 has almost no wrinkling and cracking,and mild steel B170P1 has less wrinkling than galvanized steel DQSK,but both of them have different degrees of cracking.On the basis of the same material,the appropriate increase of material thickness can reduce wrinkling and cracking.The simulation results show that the drawing bar can greatly reduce wrinkling and cracking.Through this study,wrinkling and cracking can be effectively reduced and avoided,and the service performance and life of farm tractor fender can be improved.
作者
曾如铁
吴艳
熊锦林
王硕
ZENG Ru-tie;WU Yan;XIONG Jin-lin;WANG Shuo(School of Mechanical Engineering,Wuhan Polytechnic University,Wuhan 430023,China)
出处
《武汉轻工大学学报》
CAS
2023年第1期57-65,75,共10页
Journal of Wuhan Polytechnic University
基金
湖北省教育厅科学研究计划资助项目(项目编号:D20221606)。
作者简介
曾如铁(1997-),男,硕士研究生,E-mail:zrtyj7@163.com;通信作者:吴艳(1984-),女,副教授,博士,E-mail:wuy611@163.com.
