基于扩展工况传递路径分析的驾驶室振动传递路径二级建模应用研究
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摘要
阐述了OPAX方法的基本理论,对某中型卡车驾驶室振动实施传递路径分析,并针对该车结构设计特点,提出基于OPAX方法的二级TPA分析模型,分别为动力总成-驾驶室一级传递路径模型和车架-驾驶室二级传递路径模型。通过建模测试计算获得各级悬置动刚度、工况载荷和路径贡献量,准确定位引起驾驶室振动水平较大的原因,提出改进方案,有效减小驾驶室振动水平。该应用研究表明二级TPA模型更符合研究对象的结构设计,能反映出更详尽的结构路径特性,是对已有TPA模型的丰富和拓展,对OPAX方法的工程应用具有重要的借鉴意义。
The basic theory of OPAX method was presented,and transfer path analysis( TPA) for a medium-sized truck cab vibration was done. A two-level TPA model including a powertrain-cab 1 st level TP model and a frame-cab 2 nd level TP model based on OPAX method was proposed according to structural design features of the truck. The dynamic stiffness,operating load and path contribution of various mount components were obtained with tests and calculations.They were used to correctly judge causes of the cab's higher vibration level and propose an improved scheme to effectively reduce the cab's vibration level. The results showed that the improved two-level TPA model can more fit the structure design of the study object and reflect the structure path characteristics in detail; the new model enriches and extends the existing TPA model and provides a reference for the application of OPAX method.
The basic theory of OPAX method was presented,and transfer path analysis( TPA) for a medium-sized truck cab vibration was done. A two-level TPA model including a powertrain-cab 1 st level TP model and a frame-cab 2 nd level TP model based on OPAX method was proposed according to structural design features of the truck. The dynamic stiffness,operating load and path contribution of various mount components were obtained with tests and calculations.They were used to correctly judge causes of the cab's higher vibration level and propose an improved scheme to effectively reduce the cab's vibration level. The results showed that the improved two-level TPA model can more fit the structure design of the study object and reflect the structure path characteristics in detail; the new model enriches and extends the existing TPA model and provides a reference for the application of OPAX method.
引文
[1]曾维俊.基于OPAX方法的驾驶室振动传递路径分析[D].合肥:合肥工业大学,2014.
[2]郭荣,裘剡,房怀庆,等.频域传递路径分析方法(TPA)的研究进展[J].振动与冲击,2013,32(13):49-55.GUO Rong,QIU Shan,FANG Huaiqing,et al.Advanced in studying on transfer path analysis method in frequency domain[J].Journal of Vibration and Shock,2013,32(13):49-55.
[3]褚志刚,熊敏,杨洋,等.车内噪声时域传递路径分析[J].振动与冲击,2015,34(17):161-166.CHU Zhigang,XIONG Min,YANG Yang,et al.Timedomain transfer path analysis of automobile interior noise[J].Journal of Vibration and Shock,2015,34(17):161-166.
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[5]李凤琴,郑光泽,艾晓玉.发动机双平衡轴系统设计分析[J].振动与冲击,2014,33(5):58-63.LI Fengqin,ZHENG Guangze,AI Xiaoyu.Analysis of twin balancer shafts system in internal combustion engines[J].Journal of Vibration and Shock,2014,33(5):58-63.
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[9]RAO M V,MOORTHY S N,RAGHAVENDRAN P.Dynamic stiffness estimation of elastomeric mounts using OPAX in an AWD monologue SUV[C]∥SAE 2015 Noise and Vibration Conference and Exhibition.[S.l.]:SAE,2015.
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[11]莫愁,陈吉清,兰凤崇.扩展工况传递路径分析方法改进[J].振动与冲击,2015,34(8):129-133.MO Chou,CHEN Jiqing,LAN Fengchong.Improvement of operational-X transfer path analysis method[J].Journal of Vibration and Shock,2015,34(8):129-133.
[12]莫愁,陈吉清,兰凤崇.逆子结构传递路径分析方法[J].吉林大学学报(工学版),2015,45(6):1751-1756.MO Chou,CHEN Jiqing,LAN Fengchong.Inverse substructuring transfer path analysis method[J].Journal of Jilin University(Engineering and Technology),2015,45(6):1751-1756.
[13]周鋐,丁慧,吴颖熹,等.新型传递路径分析OPAX方法研究[J].中国工程机械学报,2013,11(5):385-389.ZHOU Hong,DING Hui,WU Yingxi,et al.Methodological study on new transfer path analysis[J].Chinese Journal of Construction Machinery,2013,11(5):385-389.
[14]张秋华,王君,李明江.OPAX技术在解决车内轰鸣声中的应用[J].湖北汽车工业学院学报,2014(4):9-12.ZHANG Qiuhua,WANG Jun,LI Mingjiang.Application of OPAX technology in solving car roar[J].Journal of Hubei University of Automotive Technology,2014(4):9-12.
[2]郭荣,裘剡,房怀庆,等.频域传递路径分析方法(TPA)的研究进展[J].振动与冲击,2013,32(13):49-55.GUO Rong,QIU Shan,FANG Huaiqing,et al.Advanced in studying on transfer path analysis method in frequency domain[J].Journal of Vibration and Shock,2013,32(13):49-55.
[3]褚志刚,熊敏,杨洋,等.车内噪声时域传递路径分析[J].振动与冲击,2015,34(17):161-166.CHU Zhigang,XIONG Min,YANG Yang,et al.Timedomain transfer path analysis of automobile interior noise[J].Journal of Vibration and Shock,2015,34(17):161-166.
[4]陈剑,史韦意,蒋丰鑫,等.考虑车内振动的动力总成悬置系统多目标优化[J].中国机械工程,2015,26(8):1129-1135.CHEN Jian,SHI Weiyi,JIANG Fengxing,et al.Multiobjective optimization of powertain mount system concurrently considering energy decoupling and vechicle vibration[J].China Mechanical Engineering,2015,26(8):1129-1135.
[5]李凤琴,郑光泽,艾晓玉.发动机双平衡轴系统设计分析[J].振动与冲击,2014,33(5):58-63.LI Fengqin,ZHENG Guangze,AI Xiaoyu.Analysis of twin balancer shafts system in internal combustion engines[J].Journal of Vibration and Shock,2014,33(5):58-63.
[6]JANSSENS K,MAS P,GIELEN L,et al.A novel transfer path analysis method delivering a fast and accurate noise contribution assessment[C]∥SAE Brasil International Noise and Vibration Congress.Pune:SAE,2009.
[7]JANSSENS K,GAJDATSY P,GIELEN L,et al.OPAX:a new transfer path analysis method based on parametric load models[J].Mechanical Systems and Signal Processing,2011,25(4):1321-1338.
[8]JANSSENS K,GAJDATSY P,TAMAROZZI T,et al.Full vehicle validation of OPAX in comparison to traditional TPA methods[C]∥15th International Conference on Experimental Mechanics.Porto:University of Porto,2012.
[9]RAO M V,MOORTHY S N,RAGHAVENDRAN P.Dynamic stiffness estimation of elastomeric mounts using OPAX in an AWD monologue SUV[C]∥SAE 2015 Noise and Vibration Conference and Exhibition.[S.l.]:SAE,2015.
[10]宋海生.基于扩展OPAX传递路径方法的轻型客车振动控制研究[D].长春:吉林大学,2012.
[11]莫愁,陈吉清,兰凤崇.扩展工况传递路径分析方法改进[J].振动与冲击,2015,34(8):129-133.MO Chou,CHEN Jiqing,LAN Fengchong.Improvement of operational-X transfer path analysis method[J].Journal of Vibration and Shock,2015,34(8):129-133.
[12]莫愁,陈吉清,兰凤崇.逆子结构传递路径分析方法[J].吉林大学学报(工学版),2015,45(6):1751-1756.MO Chou,CHEN Jiqing,LAN Fengchong.Inverse substructuring transfer path analysis method[J].Journal of Jilin University(Engineering and Technology),2015,45(6):1751-1756.
[13]周鋐,丁慧,吴颖熹,等.新型传递路径分析OPAX方法研究[J].中国工程机械学报,2013,11(5):385-389.ZHOU Hong,DING Hui,WU Yingxi,et al.Methodological study on new transfer path analysis[J].Chinese Journal of Construction Machinery,2013,11(5):385-389.
[14]张秋华,王君,李明江.OPAX技术在解决车内轰鸣声中的应用[J].湖北汽车工业学院学报,2014(4):9-12.ZHANG Qiuhua,WANG Jun,LI Mingjiang.Application of OPAX technology in solving car roar[J].Journal of Hubei University of Automotive Technology,2014(4):9-12.