某校车加速异响分析及控制
|
摘要
某校车在加速工况下驾驶室内出现异响,严重影响整车舒适性。通过主观评价、频谱特征分析、声学互动滤波法的应用,实现对异响频率成分的确认。再通过综合运用铅包裹法、近场测量法等噪声源识别方法,确定该异响源为整车排气弹性连接管,通过优化弹性连接管结构解决了异响故障。
An abnormal noise in front of a school bus appeared when it accelerated rapidly,which negatively affected the comfort of passengers. Methods,such as subjective evaluation,spectrum analysis and acoustic interactive evaluation,were utilized to analysis the components of the abnormal noise frequency. Noise sources identification methods,such as lead wrap,near field measurement and so on were used to identify the abnormal noise sources. It was identified that the noise was generated by the flexible pipe of the vehicle.
An abnormal noise in front of a school bus appeared when it accelerated rapidly,which negatively affected the comfort of passengers. Methods,such as subjective evaluation,spectrum analysis and acoustic interactive evaluation,were utilized to analysis the components of the abnormal noise frequency. Noise sources identification methods,such as lead wrap,near field measurement and so on were used to identify the abnormal noise sources. It was identified that the noise was generated by the flexible pipe of the vehicle.
引文
[1]庞剑.汽车噪声与振动-理论与应用[M].北京:北京理工大学出版社,2006.
[2]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.
[3]殷志雄.某皮卡空载异响产生根源的发现与问题研究[J].柴油机设计与制造,2014,20(4):28-32.
[4]隋永乐.动力总成悬置系统的NVH性能设计开发[D].长春:吉林大学,2012.
[5]刘月辉,郝志勇,付鲁华,等.车用发动机表面辐射噪声的研究[J].汽车工程,2002,24(3):213-216.
[6]贺娜娜,周昭求,鲁守卫,等.整车加速异响诊断与控制[J].北京汽车,2015(1):34-36.
[7]GRIFFITHS W J,SKORECKI J.Some aspects of vibration on a single cylinder Diesel Engine[J].Sound and Vibration,1964,1(4):345-364.
[8]NOUMUR K,YOSHIDA J.Perception modeling and quantification of sound quality in cabin[J].SAE Technical Paper,2003-01-1514,2003.
[9]李静.基于偏相干分析的液力变速箱振动噪声性能研究[D].合肥:合肥工业大学,2010.
[10]PANG J,REBANDT R,KNAPP G,et al.Flow excited noise analysis of exhaust[J].SAE Technical Paper,2005-01-2352,2005.
[11]褚志刚,邓兆样,王亮,等.中型载货汽车怠速异响噪声源识别[J].振动与冲击,2009,28(3):171-173.
[12]靳豹,贾艳宾.某SUV怠速车内异响分析[J].噪声与振动控制,2015,35(2):77-79.
[13]熊建强,黄菊花,廖群.车辆噪声源识别理论与方法分析[J].噪声与振动控制,2011,31(4):97-101.
[14]王孚懋,任勇生,韩宝坤.机械振动与噪声分析基础[M].北京:国防工业出版社,2006.
[15]陆荣英,姚恬静,王伟伟.某MPV车型急加速异响问题分析与解决[J].装备制造技术,2016(4):178-179.
[2]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.
[3]殷志雄.某皮卡空载异响产生根源的发现与问题研究[J].柴油机设计与制造,2014,20(4):28-32.
[4]隋永乐.动力总成悬置系统的NVH性能设计开发[D].长春:吉林大学,2012.
[5]刘月辉,郝志勇,付鲁华,等.车用发动机表面辐射噪声的研究[J].汽车工程,2002,24(3):213-216.
[6]贺娜娜,周昭求,鲁守卫,等.整车加速异响诊断与控制[J].北京汽车,2015(1):34-36.
[7]GRIFFITHS W J,SKORECKI J.Some aspects of vibration on a single cylinder Diesel Engine[J].Sound and Vibration,1964,1(4):345-364.
[8]NOUMUR K,YOSHIDA J.Perception modeling and quantification of sound quality in cabin[J].SAE Technical Paper,2003-01-1514,2003.
[9]李静.基于偏相干分析的液力变速箱振动噪声性能研究[D].合肥:合肥工业大学,2010.
[10]PANG J,REBANDT R,KNAPP G,et al.Flow excited noise analysis of exhaust[J].SAE Technical Paper,2005-01-2352,2005.
[11]褚志刚,邓兆样,王亮,等.中型载货汽车怠速异响噪声源识别[J].振动与冲击,2009,28(3):171-173.
[12]靳豹,贾艳宾.某SUV怠速车内异响分析[J].噪声与振动控制,2015,35(2):77-79.
[13]熊建强,黄菊花,廖群.车辆噪声源识别理论与方法分析[J].噪声与振动控制,2011,31(4):97-101.
[14]王孚懋,任勇生,韩宝坤.机械振动与噪声分析基础[M].北京:国防工业出版社,2006.
[15]陆荣英,姚恬静,王伟伟.某MPV车型急加速异响问题分析与解决[J].装备制造技术,2016(4):178-179.