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車內(nèi)噪聲分析與控制研
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and Control of the Interior Noise in Passenger Car
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    摘要:

    利用互易性原理,，提出了一種空氣聲傳播路徑實驗方法,。首先測得各聲源對于車內(nèi)噪聲的傳遞函數(shù)，進而得到各聲源對于車內(nèi)噪聲的貢獻度。根據(jù)聲源識別結果,，對汽車車身進行吸聲,、隔聲設計,，結果表明,，車內(nèi)地板隔聲量從前向后分別提高了1.83～9.74 dB(A)，汽車車內(nèi)噪聲下降了

    Abstract:

    4.7 dB(A),。Based on the principle of reciprocity, an experimental method was developed for the air-borne propagation path,，and by doing so, the transfer functions were established from the sound sources to vehicle interior noise, and then the contributions from the different sources were got. According to the result of the noise sources identification, car body was redesigned by using techniques of the sound absorption and sound insulation. Case research showed that acoustical reduction factor of the vehicle floor increased by 1.83～9.74 dB(A), and that the vehicle interior noise fell 4.7 dB(A). 

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賈繼德,陳劍,王軍.車內(nèi)噪聲分析與控制研[J].農(nóng)業(yè)機械學報,2009,40(2):204-208. and Control of the Interior Noise in Passenger Car[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(2):204-208.

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