自動車用発電機の電磁騒音に関する検討 : モード解析による騒音源の推定

概要

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Reduction of the noise emitted from the automobile alternator has recently become a serious issue, especially in relation to the improvement of the amenity of driving. We intend to analyze electromagnetic noise of the alternator and to clarify some sources and causes of the noise. The study consists of the following three steps : ( 1 ) measurement of noise from the rotating alternator, ( 2 ) experimental modal analysis through the measurement of natural frequencies of the components, ( 3 ) comparison of the approximate value calculated theoretically with the data from vibration tests. The theoretical and experimental analyses revealed the relationship between the noise and vibration of the alternator. The results obtained are applicable to alternator design for the reduction of noise.
一般社団法人日本機械学会の論文
1995-09-25