四川环境
四川環境
사천배경
2012年
5期
137-139
,共3页
城市居住区%配套设备%低频噪声%频谱分析
城市居住區%配套設備%低頻譟聲%頻譜分析
성시거주구%배투설비%저빈조성%빈보분석
Urban residential area%associated facilities%low frequency noise%frequency spectrum analysis
对绵阳市某居住区典型的配套设备噪声源进行分析，选取变配电房噪声、车库噪声、电梯井噪声、电梯控制室噪声、家用空调室外机、水泵房等6种典型噪声源。分析这些噪声源的频谱及低、中、高频段的能量比率。结果表明，各声源最大声压级所在频段以低频段最多（6种典型噪声中占5种），最大能量分布频段也是以低频段最多（6种典型噪声中占5种），因而低频噪声已经成为居住区中影响最大的噪声源。
對綿暘市某居住區典型的配套設備譟聲源進行分析，選取變配電房譟聲、車庫譟聲、電梯井譟聲、電梯控製室譟聲、傢用空調室外機、水泵房等6種典型譟聲源。分析這些譟聲源的頻譜及低、中、高頻段的能量比率。結果錶明，各聲源最大聲壓級所在頻段以低頻段最多（6種典型譟聲中佔5種），最大能量分佈頻段也是以低頻段最多（6種典型譟聲中佔5種），因而低頻譟聲已經成為居住區中影響最大的譟聲源。
대면양시모거주구전형적배투설비조성원진행분석，선취변배전방조성、차고조성、전제정조성、전제공제실조성、가용공조실외궤、수빙방등6충전형조성원。분석저사조성원적빈보급저、중、고빈단적능량비솔。결과표명，각성원최대성압급소재빈단이저빈단최다（6충전형조성중점5충），최대능량분포빈단야시이저빈단최다（6충전형조성중점5충），인이저빈조성이경성위거주구중영향최대적조성원。
The frequency spectrum as well as the energy ratio of low band, mid band and high band of noise sources in residential area from typical facilities including transformer substations, garages, elevator shafts, elevator control rooms, air conditioner external unit and pump houses were analyzed. The result showed that most of the maximal sound pressure levels appeared in the low band (five ones appeared in six typical noise sources) and most of the maximal energy distribution also appeared in the low band (five ones appeared in six typical noise sources). So the low-frequency noise was the biggest noise source in the resident area.
