Article 3, # 3’2018

Fedorov, V. V., Candidate of Technical Sciences (Ph.D.), Yanovsky, V. V., Candidate of Technical Sciences (Ph.D.), Kondratenko, V. M., Master Degree (National Transport University)
AN IMPROVED ARMORED VEHICLE NOISE SILENCER CONSIDERING OF THE DOPPLER EFFECT. DOI: 10.33868/0365-8392-2018-3-255-12-15

Abstract. Noise silencers are usually used to compensate for the exhaust gases noise of car engines. For their productive work, in addition to other parameters, it is necessary to know the frequency of the internal combustion engines’ exhaust gases noise. A well-known formula for calculating a given noise frequency considering the Doppler effect is improved since sound waves move in waste gases that also move.
Keywords: car, internal combustion engine, exhaust, exhaust gases, noise, noise source, acoustic efficiency, frequency, Doppler effect.

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