A frequency-domain analysis method and its applications based on the combination of FFT and DFT

被引：0
|
作者：
Xu, Weiqing [1 ]
Wu, Guangqiang [1 ,2 ]
Luan, Wenbo [1 ]
机构：
[1] School of Automotive Studies, Tongji University, Shanghai 201804, China
[2] Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
来源：
Qiche Gongcheng/Automotive Engineering | 2014年 / 36卷 / 01期
关键词：
Fast Fourier transforms - Speed - Engines - Vibration analysis - Design for testability;
D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
A frequency domain analysis method based on the combination of FFT and DFT is proposed, with which the vibration signals of a vehicle collected is analyzed and the information of engine speed is extracted. The results of real vehicle test verify the feasibility and effectiveness of the method. In the end the engine speed extracted is corrected based on the high-order frequencies of engine speed.
引用
收藏
页码：51 / 56
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