噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2015年
2期
44-46
,共3页
朱士友%陈希隽%龙静%陈刚%卢勇
硃士友%陳希雋%龍靜%陳剛%盧勇
주사우%진희준%룡정%진강%로용
声学%地铁车辆%噪声测试%曲线半径%运行速度
聲學%地鐵車輛%譟聲測試%麯線半徑%運行速度
성학%지철차량%조성측시%곡선반경%운행속도
acoustics%metro vehicle%noise measurement%radius of curvature%traveling speed
以广州地铁一号线A1型车为对象,运用多通道噪声测试与分析系统,对正线运行车辆客室内噪声进行测试分析,获得一号线各区间客室噪声变化数据,结果表明:当曲线半径小于600 m时,客室噪声主频带位于630 Hz和1000 Hz之间,随着曲线半径的增大,各频段噪声分布趋于均匀,主频逐渐不明显;列车运行速度对客室内中、高频噪声影响较大。噪声测试分析为车辆及线路的设计和维护提供参考数据。
以廣州地鐵一號線A1型車為對象,運用多通道譟聲測試與分析繫統,對正線運行車輛客室內譟聲進行測試分析,穫得一號線各區間客室譟聲變化數據,結果錶明:噹麯線半徑小于600 m時,客室譟聲主頻帶位于630 Hz和1000 Hz之間,隨著麯線半徑的增大,各頻段譟聲分佈趨于均勻,主頻逐漸不明顯;列車運行速度對客室內中、高頻譟聲影響較大。譟聲測試分析為車輛及線路的設計和維護提供參攷數據。
이엄주지철일호선A1형차위대상,운용다통도조성측시여분석계통,대정선운행차량객실내조성진행측시분석,획득일호선각구간객실조성변화수거,결과표명:당곡선반경소우600 m시,객실조성주빈대위우630 Hz화1000 Hz지간,수착곡선반경적증대,각빈단조성분포추우균균,주빈축점불명현;열차운행속도대객실내중、고빈조성영향교대。조성측시분석위차량급선로적설계화유호제공삼고수거。
With A1 type vehicles of Guangzhou Metro Line 1 as the object, the noise in metro vehicle compartments, when the vehicle was traveling on the operation line, was measured and analyzed using a multi-channel measurement and analysis system. The result shows that when the radius of curvature of the curved line is less than 600 m, the main frequency band of the noise in the metro vehicle compartments is ranged between 630 Hz and 1 000 Hz;with the increasing of the radi-us of curvature, different frequency bands of the noise become uniform gradually and the main frequency band is not obvi-ous;traveling speed of the train has a large influence on the medium and high frequency noises in the vehicle compartments. The measurement and analysis of the noise may provide a basis for design and maintenance of metro vehicles and subway lines.