铝合金在新能源汽车车架中的轻量化应用研究  

Lightweight Application Study of Aluminum Alloy in New Energy Vehicle Frame

作　　者：张泽昭 谷雪松 李亚妮 冯坤 习吕鹏 Zhang Zezhao;Gu Xuesong;Li Yani;Feng Kun;Xi Lüpeng(Shanxi Heavy Duty Automobile Co.,Ltd.,Xi’an 710200)

机构地区：[1]陕西重型汽车有限公司,西安710200

出　　处：《汽车工艺与材料》2024年第7期34-39,共6页Automobile Technology & Material

基　　金：陕西省科学技术协会青年人才托举计划项目(nycl20210313)。

摘　　要：为提升整车轻量化程度,依据等强度原理和迭代优化方法,采用6082-T6铝合金挤压型材,参考钢制车架结构,设计一种轻量化新能源牵引车车架。通过有限元建模仿真、简支梁模拟计算、多通道台架模拟分析和实物台架试验,对静强度、弯曲刚度、扭转疲劳强度性能进行安全验证,最终车架方案的静强度最小安全因子为1.11,弯曲刚度为1.06×1013 N/mm,且40万次扭转疲劳试验未失效。结果表明,新设计的新能源牵引车车架满足性能要求,在钢制车架基础上实现降重40%。In order to improve the lightweight degree of the whole vehicle,according to the equal strength principle and iterative optimization method,a lightweight new energy tractor frame is designed by using 6082-T6 aluminum alloy extrusion and referring to the structure of steel frame.Through finite element modeling and simulation,simply supported beam simulation calculation,multi-channel bench simulation analysis and physical bench test,the static strength,bending stiffness,torsional fatigue strength performance are verified.The minimum safety factor of static strength of the final frame scheme is 1.11,the bending stiffness is 1.06×1013 N/mm,and the torsional fatigue test has not failed for 400000 times.The results show that the newly designed frame of new energy tractor can meet the performance requirements and reduce weight by 40%on the basis of steel frame.

关 键 词：车架 铝合金 轻量化 

分 类 号：U463.1[机械工程—车辆工程]