摘要
目前测试汽油辛烷值采用两种方法:内插法和压缩比法。压缩比法相对于内插法来说操作更加简捷,但是仅凭经验使用压缩比法准确找到待测燃料产生与参比燃料相同爆震强度的压缩比费时费力。本文提出用一维搜索的方法实现辛烷值压缩比法的测定自动化。首先设计了线性插值和黄金分割两种适用压缩比法测定自动化的一维搜索算法,然后对两种搜索算法进行了数值仿真并对比,最后得出基于黄金分割的搜索算法性能更加优良。
Currently,two methods are used to test the octane number of gasoline: interpolation and compression ratio. The compression ratio method is simpler to operate than the interpolation method,but it is time-consuming and laborious to use the compression ratio method to accurately find the compression ratio of the fuel to be tested when producing the same knock intensity as the reference fuel only by experience. This thesis proposes a lineal search method to achieve the automatic measurement of the octane compression ratio. Firstly,the linear search algorithm is designed with linear interpolation and golden section,the two are used for automatic measurement of the compression ratio. Then the two search algorithms are numerically simulated and compared. Finally,the performance of the search algorithm based on golden section is better.
作者
彭勇
李宝福
Peng Yong;Li Baofu
出处
《计量与测试技术》
2018年第7期35-37,共3页
Metrology & Measurement Technique
关键词
辛烷值
压缩比法
线性插值法
黄金分割法
octane number
compression ratio method
linear interpoltion method
golden section