现代制造工程Issue(12)：76-83,8.DOI:10.16731/j.cnki.1671-3133.2023.12.010
某车型内高压成形吸能盒碰撞性能数值仿真研究
Numerical simulation study on crash performance of high-pressure forming energy absorbing box in a certain model
摘要
Abstract
As an important energy-absorbing component in the bumper,the automobile energy-absorbing box can absorb collision energy,protect longitudinal beams and reduce maintenance costs during a collision,and has a positive effect on improving the crashworthiness of the entire vehicle.Taking the energy-absorbing box of the front bumper of a certain car model as the research object,the original stamping and welding structure was optimized into an internal high-pressure forming structure.Hypermesh and LS-Dyna software were used to conduct collision numerical simulations on the energy-absorbing characteristics of the two structural energy-absorbing boxes.Autoform software was used to conduct internal high-pressure forming numerical simulations of the internal high-pressure forming of the energy-absorbing boxes.Forming and collision tests were conducted on the actual energy-absorbing boxes.Finally,the collision numerical simulation results,internal high-pressure forming numerical simulation results and experimental values were compared.The results show that the internal high-pressure forming structure energy-absorbing box is superior to the stamping and welding structure energy-absorbing box in three aspects cncluding lightweight,cost and product performance.Both collision numerical simulation and internal high-pressure forming numerical simulation have important effects on product performance and process development and optimization.With great guiding significance,this research method provides a new idea for the design of automotive energy-absorbing components.关键词
吸能盒/内高压成形/数值仿真/碰撞性能/落锤试验Key words
energy absorbing box/internal high-pressure forming/numerical simulation/impact performance/drop weight test分类
交通工程引用本文复制引用
刘宁,李欢,冯竞慧,刘阳..某车型内高压成形吸能盒碰撞性能数值仿真研究[J].现代制造工程,2023,(12):76-83,8.基金项目
2023年度吉林省高校优秀青年科研创新人才储备库项目 （）
2022年吉林省高教科研重点课题项目(JGJX2022B62) （JGJX2022B62）
长春市教育科学"十四五"2022年度规划课题项目(JKBLX2022007) （JKBLX2022007）
2022年吉林省高教科研一般课题项目(JGJX2022D714) （JGJX2022D714）
