摘要
针对某型新能源车板弹簧轻量化需求,设计开发了主副式结构复合材料板弹簧,主簧为金属簧,副簧为复合材料簧,从而有效结合各材料特性。通过有限元应力分析与试验测试,发现在各工况下复合材料副簧最大应力为-469.6 MPa,安全系数为1.7。采用该结构形式的复合材料板簧,总重为20.24 kg,相比于原金属板簧减重50%以上。最终成型的主副式板弹簧刚度达标,并通过24万次台架疲劳试验与6 000 km装车综合路试,主副簧外观与刚度无明显变化,满足该车的使用寿命。
Aiming at a type of new energy vehicle leaf spring lightweight demand, main and secondary type composite leaf spring was designed and developed,the main spring was made of metal,the auxiliary spring was made of comoposite,which effectively combined the characteristics of each material. Finite element stress analysis and the experiments showed that under all the conditions of leaf spring, maximum stress was –469.6 MPa,and the safety coefficient was 1.7. The composite spring with this structure had a total weight of 20.24 kg,which was more than 50% less than the original metal leaf spring. The rigidity of the main and secondary leaf spring is up to standard, and through the 240 thousand stage fatigue test and the 6000 km loading road test,the appearance and rigidity of the composite leaf springs are not changed, which meets the service life of the vehicle.
作者
周洲
肖罗喜
程杨
李建林
刘波
王明星
周滨
Zhou Zhou;Xiao Luoxi;Cheng Yang;Li Jianlin;Liu Bo;Wang Mingxing;Zhou Bin(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412000,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2018年第7期74-77,82,共5页
Engineering Plastics Application
关键词
主副式
复合材料板弹簧
疲劳试验
刚度
main and secondary
composite leaf spring
fatigue test
stiffness
