Dynamics & Design Conference
Online ISSN : 2424-2993
セッションID: 338
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338 固体音低減による温乳器のファン騒音の低減
山崎 徹伊東 圭昌新村 吉麿畠山 一久
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会議録・要旨集 フリー

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This paper presents the noise reduction of the machine product with fan noise by reducing structure-borne sound. Also we propose a new method for identifying the contributions of air- and structure-borne sounds in machinery noise. The contribution analysis method is based on the estimation of the structure-borne sound which is predicted by using experimental SEA. Firstly, the contribution analysis method is newly introduced. Next we apply the method to identifying the sound contribution of a breast milk warm machine which has a motor and a sirocco fan for blowing hot air circulated inside of the machine. The contribution analysis results are verified by the comparison with the measurement results in which the structure-borne sound is less generated. Finally it is shown that the noise level can be reduced by controlling the structure-borne sound.
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© 2012 一般社団法人 日本機械学会
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