某SUV后主减速器振动引起车内轰鸣问题的研究
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摘要
某SUV四驱车型存在明显的加速轰鸣声问题,严重影响了四驱车型的量产。通过噪声测试、模态分析等方法对噪声产生路径及解决方案进行了研究,判断该轰鸣声是由后主减速器振动传递到车身引起。通过优化主减与车身连接支架,增加减振措施,使驾驶员右耳噪声能量降低10 dB以上,有效解决了该轰鸣问题,使整车噪声舒适性显著提高。
The Four-wheel Drive of SUV has obvious booming noise, which has been seriously affecting mass production of the Four-wheel Vehicle. This paper researches on paths and methods to eliminate the noise by test and mode analysis, and it concludes that the booming noise is caused by vibration of the final drive, which transfers noise to vehicle body. By optimizing the connecting bracket between the final drive and body, increasing the damping vibration measure, noise energy of the driver right ear is decreased by more than 10 dB, and thus booming noise is effectively solved. Finally, comfortability of vehicle noise is improved apparently.
The Four-wheel Drive of SUV has obvious booming noise, which has been seriously affecting mass production of the Four-wheel Vehicle. This paper researches on paths and methods to eliminate the noise by test and mode analysis, and it concludes that the booming noise is caused by vibration of the final drive, which transfers noise to vehicle body. By optimizing the connecting bracket between the final drive and body, increasing the damping vibration measure, noise energy of the driver right ear is decreased by more than 10 dB, and thus booming noise is effectively solved. Finally, comfortability of vehicle noise is improved apparently.
引文
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[6]段龙杨.某运动型多功能车车内轰鸣噪声分析与控制方法研究[D].长春:吉林大学,2010.
[2]张慧芳,石岩,范永恒,等.某SUV排气系统振动引起车内低频轰鸣问题研究[C].汽车NVH控制技术国际研讨会论文选登,2015.
[3]庞剑,谌刚,何华.汽车噪声与振动[M].北京:北京理工大学出版社,2006.
[4]庞剑.汽车车身噪声与振动控制[M].北京:机械工业出版社,2015.
[5]成亚南,周权,徐艳平,周正,刘浩.基于仿真分析的车内轰鸣控制方法[C].中国汽车工程学会年会论文集,2015.
[6]段龙杨.某运动型多功能车车内轰鸣噪声分析与控制方法研究[D].长春:吉林大学,2010.