摘要
在分析与论述国内外测量汽车空气阻力系数常用试验方法的基础上 ,采用二次滑行试验方法测量汽车空气阻力系数 ,并对实车进行了相应的滑行试验 .通过对试验结果的分析与比较 ,证明了二次滑行法可有效地提高空气阻力系数测量的精度 ,误差范围控制在 5 %左右 ;同时简化了试验条件 ,缩短了试验路段长度 ,提高了试验可靠度 .
In this paper, a two_stage coastdown testing method is presented. It is based on the former methods generally adopted both at home and abroad to determine the air drag coefficient.The results of the two_stage coastdown tests of the vehicle are analysed and compared.It is shown that this testing method can reduce the distance of the testing run way,control the testing error within 5%, simplify the testing conditions and improve the measuring accuracy and the degree of reliability.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2000年第6期44-48,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
广州市建委基金资助项目! (合同编号 972 8)
关键词
二次滑行法
空气阻力系数
高速滑行
汽车
测量
the two_stage coastdown testing method
the air drag coefficient
high speed slide
low speed slide
