汽车前围隔声性能的计算方法
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摘要
基于双墙系统及组合件隔声量的计算方法,给出了汽车前围隔声量的计算方法。以某款汽车前围零件为研究对象,计算了汽车前围隔声量,并在混响室-全消室对该零件进行了测试。结果表明,该计算方法适用于快速计算汽车前围类零件的隔声量。最后对汽车的前围隔声性能进行了优化,得到了比较理想的隔声性能。该计算方法对发动机前围类零部件隔声性能的设计及优化有一定的指导意义。
Based on the calculation method of double-wall system and sound transmission loss of assembling unit,the calculation method of sound transmission loss for vehicle dash mat is obtained. The sound transmission loss is calculated by testing a certain vehicle dash mat in reverberant room to anechoic room. The results show that this method is suitable for the fast calculation of sound transmission loss for vehicle dash mat components. By optimizing the sound-insulated performance of vehicle dash mat,an ideal performance is finally achieved. This calculation method will be of guiding significance for the design and optimization of vehicle dash mat parts.
Based on the calculation method of double-wall system and sound transmission loss of assembling unit,the calculation method of sound transmission loss for vehicle dash mat is obtained. The sound transmission loss is calculated by testing a certain vehicle dash mat in reverberant room to anechoic room. The results show that this method is suitable for the fast calculation of sound transmission loss for vehicle dash mat components. By optimizing the sound-insulated performance of vehicle dash mat,an ideal performance is finally achieved. This calculation method will be of guiding significance for the design and optimization of vehicle dash mat parts.
引文
[1]PARRETT A V,HICKS B,JOHN K.Statistical energy analysis of airborne and structure-borne antomabile[C]//Proceedings of Iner Noise.[S.I]:SAE International,1997:1014-1020.
[2]叶武平,易明,靳晓雄.运用统计能量分析方法进行轿车内室噪声的仿真[J].同济大学学报,2001,29(9):1066-1071.
[3]WANG Y S,LEE C M,KIM D G,et al.Soundquality prediction for nonstationary vehicle interior noise based on w avelet pre-processing neural netw ork model[J].Journal of Sound and Vibration,2007,299(4/5):933-947.
[4]ZHANG Y,LAI X,ZHU P,et al.Lightweight design of automobile component using high strength steel based on dent resistance[J].M aterials&Design,2006,27(1):64-68.
[5]庞龙,谌刚,何华.汽车噪声与振动[M].北京:北京理工大学出版社,2008:331-340.
[6]刘小勇,刘志宏,行晓亮,等.SEA在汽车室内噪声控制中的应用研究[J].声电技术,2007,31(1):66-68.
[7]SHIN S H,CHEONG C.Experimental characterization of instrument panel buzz,squeak and rattle(BSR)in a vehicle[J].Applied Acoustics,2010,71(12):1162-1168.
[8]Qijun Zhang,Alan Parrett,Michelle Wood.Vehicle Dash M at SEA M odeling and Correlation[C].Paper SAE,2007:1014-1020.
[9]毛杰,郝志勇,卢兆刚,等.基于FE-SEA混合法的汽车镁合金前围板隔声量数值计算[J].浙江大学学报,2012,46(12):2184-2200.
[10]马大猷.噪声与振动控制工程手册[M].北京:机械工业出版社,2002:255-266.
[11]DOUTRES O,ATALLA N.Experimental estimation of the transmission loss contributions of a sound package placed in a double w all structure[J].Applied Acoustics,2011,72(6):372-379.
[12]Frank Fahy,Paolo Gardonio.Sound and Structural Vibration Radiation,Transimission and Response[M].London:Academic Press,2007:303-320.
[13]Harold W.Lord,William S.Gatley,Harold A.Evensen.Noise Control for Engineers[M].Florida:Krieger Publishing Co,1987:285-286.
[14]贺一辉,张小农.SEA在优化内饰声学件设计中的应用[J].上海汽车,2008(2):22-24.
[15]曹伟,李国林,李宏华,等.静音钢板前围板的轻量化应用及噪音性能研究[J].农业装备与车辆工程,2011(2):20-22.
[2]叶武平,易明,靳晓雄.运用统计能量分析方法进行轿车内室噪声的仿真[J].同济大学学报,2001,29(9):1066-1071.
[3]WANG Y S,LEE C M,KIM D G,et al.Soundquality prediction for nonstationary vehicle interior noise based on w avelet pre-processing neural netw ork model[J].Journal of Sound and Vibration,2007,299(4/5):933-947.
[4]ZHANG Y,LAI X,ZHU P,et al.Lightweight design of automobile component using high strength steel based on dent resistance[J].M aterials&Design,2006,27(1):64-68.
[5]庞龙,谌刚,何华.汽车噪声与振动[M].北京:北京理工大学出版社,2008:331-340.
[6]刘小勇,刘志宏,行晓亮,等.SEA在汽车室内噪声控制中的应用研究[J].声电技术,2007,31(1):66-68.
[7]SHIN S H,CHEONG C.Experimental characterization of instrument panel buzz,squeak and rattle(BSR)in a vehicle[J].Applied Acoustics,2010,71(12):1162-1168.
[8]Qijun Zhang,Alan Parrett,Michelle Wood.Vehicle Dash M at SEA M odeling and Correlation[C].Paper SAE,2007:1014-1020.
[9]毛杰,郝志勇,卢兆刚,等.基于FE-SEA混合法的汽车镁合金前围板隔声量数值计算[J].浙江大学学报,2012,46(12):2184-2200.
[10]马大猷.噪声与振动控制工程手册[M].北京:机械工业出版社,2002:255-266.
[11]DOUTRES O,ATALLA N.Experimental estimation of the transmission loss contributions of a sound package placed in a double w all structure[J].Applied Acoustics,2011,72(6):372-379.
[12]Frank Fahy,Paolo Gardonio.Sound and Structural Vibration Radiation,Transimission and Response[M].London:Academic Press,2007:303-320.
[13]Harold W.Lord,William S.Gatley,Harold A.Evensen.Noise Control for Engineers[M].Florida:Krieger Publishing Co,1987:285-286.
[14]贺一辉,张小农.SEA在优化内饰声学件设计中的应用[J].上海汽车,2008(2):22-24.
[15]曹伟,李国林,李宏华,等.静音钢板前围板的轻量化应用及噪音性能研究[J].农业装备与车辆工程,2011(2):20-22.