Memoirs of the Faculty of Engineering, Yamaguchi University
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Memoirs of the Faculty of Engineering, Yamaguchi University Volume 38 Issue 2
published_at 1988
An Experimental Study on Generation Mechanism of Combustion Induced Engine Noise (2nd Report : Transmission Paths of Combustion Impact Noise)
エンジンにおける燃焼衝撃音の発生機構に関する実験的研究（第 2 報 : 燃焼衝撃音の伝達経路）
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In the previous paper, the transmission-radiation coefficient of combustion noise was proposed in order to investigate the engine structure response from the viewpoint of combustion noise generation. In this paper, the coefficients were examined for both a non-running engine structure excited by single explosion and an operated one. Using the vibration isolation techniques, the characteristics of these coefficients were obtained for three transmission paths of the test engine structure. The experimental methods to clarify the generation mechanisms of combustion noise were also discussed.
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