汽车前纵梁耐撞性研究与有限元模型验证  

Study on Crashworthiness of Automobile Front Longitudinal Beam and Verification of Finite Element Model

作　　者：史绍寅 张代胜 李翼良 谷先广 SHI Shao-yin;ZHANG Dai-sheng;LI Yi-liang;GU Xian-guang(Intelligent Manufacturing Institute,Hefei University of Technology,Hefei 230009,China;School of Automotive and Transportation Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学智能制造技术研究院,安徽合肥230009 [2]合肥工业大学汽车与交通工程学院,安徽合肥230009

出　　处：《机械工程与自动化》2023年第1期11-13,共3页Mechanical Engineering & Automation

基　　金：安徽省新能源汽车暨智能网联汽车产业技术创新工程项目;安徽省科技重大专项(202203a05020029)。

摘　　要：汽车发生正面碰撞时,汽车前端为主要吸能区域,而前纵梁是汽车前端的主要吸能部位,因此其耐撞性好坏对于汽车来说至关重要,对于前纵梁耐撞性的研究主要关注它的评价指标。通过建立前纵梁的有限元模型对其进行压溃仿真,并通过动态落锤冲击试验对有限元模型进行了验证。研究结果表明:该前纵梁有限元模型的变形模式与力—位移曲线均相符,验证了该模型的准确性。In case of frontal collision, the front end of the car is the main energy absorption area, and the front longitudinal beam is the main energy absorption part of the front end of the car. Therefore, its crashworthiness is very important for the car. The research on the crashworthiness of the front longitudinal beam mainly focuses on its evaluation index. In this paper, the finite element model of the front longitudinal beam is established for crushing simulation, and the finite element model is verified by dynamic drop hammer impact test. The results show that the deformation mode of the finite element model of the front longitudinal beam is consistent with the force displacement curve, which verifies the accuracy of the model.

关 键 词：前纵梁 有限元模型 动态冲击 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]