Analysis of Combustion Induced Noise of Engine by Single Explosion Excitation : 2nd Report, Application of Transmission-radiation Coefficient to Running Engine

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概要

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• Combustion impact is one of the most predominant sources of engine noise. The transmission-radiation coefficients of combustion noise, which were defined as a conversion power ratio from the combustion impact to the emitted noise, were studied with both a stationary engine excited by a single explosion and an operating engine. The characteristics of these coefficients obtained in the same engine coincided with each other, so it can be said that the transmission and radiation of combustion noise of an operating engine are analogous with those of a stationary engine, to a certain extent. Then, the vibration response for combustion impact and the noise radiation coefficients were examined for each engine wall to identify their contribution to the total combustion noise.

• 一般社団法人日本機械学会の論文

著者

• KOJIMA Naoya

  Faculty of Engineering, Yamaguchi University

• Kojima Naoya

  Faculty Of Engineering Yamaguchi University

• Kojima Naoya

  Faculty Of Engineering Hokkaido University

関連論文

• Impulse Response and Radiated Noise in an Air-Cooled Small Engine
• A Study on Mufflers with Air Flow : 1 st Report Generation of Noise from Expansion Cavity Type Mufflers due to Mean Flow
• Analysis of Combustion Induced Noise of Engine by Single Explosion Excitation : 2nd Report, Application of Transmission-radiation Coefficient to Running Engine
• Studies On the Combustion Noise in Diesel Engines : 1st Report Separation of Combustion Noise from Engine Noise
• A Study on the Correlation Between Fluctuating Velocity in a Muffler and Air Flow Noise : Heat Transfer, Power, Combustion, Thermophysical Properties
• Combustion Induced Noise of Engine by Single Explosion Excitation : 1st Report, Combustion Noise for Stationary Engine

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