Spectral analysis of acoustic car noise

International Scientific-technical Conference on Innovative Engineering Technologies, Equipment and Materials 2017

工业技术;机械制造;材料科学

Pchenitchnyi, P.V.^1 ; Strekalov, V.A.^1 ; Tagirov, R.R.^1 ; Shaimukhametov, R.R.^1

Kazan Federal University, Kazan

420008, Russia^1

关键词: Fourier spectroscopy;    Operating condition;    Periodograms;    Petrol engine;    Physical process;    Voice recorders;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/412/1/012055/pdf
DOI  :  10.1088/1757-899X/412/1/012055

来源: IOP

【 摘 要 】

The results of the Fourier spectroscopy of the acoustic noise of an internal combustion engine are presented. The sound was recorded using a voice recorder placed near the engine under varied operating conditions for the four-cylinder petrol engine. The distinctive characteristics of the periodograms where associated with the certain physical processes in the engine.