Narayan Time - Frequency Analysis of Diesel Engine Noise
نویسنده
چکیده
Combustion is the main type of noise radiated from diesel engines. Several methods have been devised to reduce the noise levels. Fourier tranformation methods along with block attenuation curves have been used to study the correlation between cylinder pressure and noise radiated from engines. In this work wavelet method has been used to study noisee mitted from a dual injection diesel engine. The results show high variation in cylinder pressure levels and noisee mitted which indicate non stationary nature of combustion process.
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تاریخ انتشار 2014