基于有限元传递路径的加速噪声分析与优化
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- 英文论文题名：Analysis and Optimization on Speeding-up Noise Based on Finite Element Transfer path
- 论文作者：张焰 ; 马峰
- 英文论文作者：Zhang Yan ; Ma Feng ; Guangzhou Automobile Group Co. ; LTD Automotive Engineering Institute
- 年：2016
- 作者机构：广州汽车集团股份有限公司汽车工程研究院NVH部;
- 论文关键词：传递路径 ; 加速噪声 ; 振动传递力 ; 噪声传递函数 ; 动刚度
- 英文论文关键词：transfer path ; acceleration noise ; vibration force ; noise transfer function ; point mobility
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U467.493
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：4
- 文件大小：1103k
- 原文格式：O
- 会议级别：全国
摘要
本文以一款SUV的加速噪声为研究对象,建立"动力总成-前副车架-整备车身-声腔"耦合有限元模型,利用一步法TPA分析车内噪声在加速工况时的主要传递路径,从传递路径的角度研究车辆系统的多维振动传递特性,并改善振动力的传递,进而优化车内噪声。结果表明:车身与前副车架的后端连接点是97Hz附近加速噪声的主要传递路径,调整其连接衬套刚度,该路径的振动传递力明显减小,驾驶员右耳加速噪声改善2.5dB。
In this paper,an acceleration noise of SUV is studied.The "power train"- "front subframe"- "trimmed body"- "cavity" coupled finite element model was established.The main transfer paths of the interior noise in the accelerating condition were analyzed by TPA means,the multi- dimensional vibration transmission characteristics of vehicle system were studied from the perspective of transfer path,and then,the vibration transmission force and interior noise were optimized.The results show that the connecting points of the rear end of the vehicle body and the front subframe were the main transmission paths of the acceleration noise near the 97 Hz,and the stiffness of the connecting bush were adjusted.The vibration transmission force of these paths were obviously reduced,and the acceleration noise in the vehicle was improved by 2.5dB.
In this paper,an acceleration noise of SUV is studied.The "power train"- "front subframe"- "trimmed body"- "cavity" coupled finite element model was established.The main transfer paths of the interior noise in the accelerating condition were analyzed by TPA means,the multi- dimensional vibration transmission characteristics of vehicle system were studied from the perspective of transfer path,and then,the vibration transmission force and interior noise were optimized.The results show that the connecting points of the rear end of the vehicle body and the front subframe were the main transmission paths of the acceleration noise near the 97 Hz,and the stiffness of the connecting bush were adjusted.The vibration transmission force of these paths were obviously reduced,and the acceleration noise in the vehicle was improved by 2.5dB.
引文
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[2]Bennur M,Guan J,Mandal D.Advancement in Vehicle Development Using the Auto Transfer Path Analysis[J].SAE International Journal of Passenger Cars-Mechanical Systems,2014,7(1):113-124.
[3]郭荣,万钢,赵艳男,等.车内噪声传递路径分析方法探讨[J].振动、测试与诊断,2007,27(3):199-203.
[4]Sottek R,Sellerbeck P,Klemenz M.An artificial head which speaks from its ears:investigations on reciprocal transfer path analysis in vehicles,using a binaural sound source[R].SAE Technical Paper,2003.
[5]刘东明,项党,罗清,等.传递路径分析技术在车内噪声与振动研究与分析中的应用[J].噪声与振动控制,2008(4):73-77.
[6]Kuratani F,Matsubara K,Yamauchi T.Finite element model for spot welds using multi-point constraints and its dynamic characteristics[J].SAE International Journal of Passenger Cars-Mechanical Systems,2011,4(2):1311-1319.
[7]赵彤航.基于传递路径分析的汽车车内噪声识别与控制[D].长春:吉林大学,2008.
[8]王万英,靳晓雄,彭为,等.轮胎振动噪声结构传递路径分析[J].振动与冲击,2010,29(6):88-91.