| 时域传递路径分析在路噪声品质开发中的应用* |
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| 引用本文： | 毛杰,陈志东,邱 毅,周昌水,张亚楠,姚再起.时域传递路径分析在路噪声品质开发中的应用*[J].应用声学,2022,41(5):815-821. |
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| 作者姓名： | 毛杰 陈志东 邱 毅 周昌水 张亚楠 姚再起 |
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| 作者单位： | 吉利汽车研究院（宁波）有限公司,吉利汽车研究开发宁波有限公司,浙江大学能源工程学院,吉利汽车研究开发宁波有限公司,吉利汽车研究开发宁波有限公司,吉利汽车研究开发宁波有限公司 |
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| 基金项目： | 国家重点研发计划《工业装备结构拓扑优化核心算法与自主可控软件研发》项目（2020YFB1709400） |
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| 摘 要： | 基于某SUV在30~40 Hz频段的路噪声品质问题，采用时域TPA方法进行了问题的复现，并通过TPA分解确定主要贡献来自于后副车架安装点的Z向。采用CAE方法完成了主路径噪声传递函数（NTF）的优化，通过尾门的结构优化降低NTF，使得30~40 Hz的路噪下降了4 dB。采用声音回放技术完成了CAE优化方案的主观评价，评价通过后再进行实车验证，提高开发效率。
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| 关 键 词： | 时域TPA，路噪，声品质，试验-仿真混合法 |
| 收稿时间： | 2021/8/4 0:00:00 |
| 修稿时间： | 2022/9/3 0:00:00 |
Road noise sound quality development by time-domain transfer path analysis |
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| Mao Jie,CHEN Zhidong,QIU Yi,ZHOU Changshui,ZHANG Yanan and YAO Zaiqi.Road noise sound quality development by time-domain transfer path analysis[J].Applied Acoustics,2022,41(5):815-821. |
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| Authors: | Mao Jie CHEN Zhidong QIU Yi ZHOU Changshui ZHANG Yanan and YAO Zaiqi |
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| Institution: | Geely Automobile R&D Institute,Geely Automobile Research Institute,College of Energy Engineering, Zhejiang University,Geely Automobile Research Institute,Geely Automobile Research Institute,Geely Automobile Research Institute |
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| Abstract: | For a road noise sound quality issue of an SUV, time-domain transfer path analysis (TPA) was used to recur the issue. TPA composition was introduced to determine that the issue was mainly contributed by the rear subframe from the Z direction. Then CAE technology was adopted to analyze root cause of noise transfer function (NTF) peak of main contribution paths. The NTF peak was reduced by the tailgate structure optimization, which decreased 4 dB for the road noise in 30~40 Hz. Sound playback technology was used to subjectively evaluate the CAE optimization design. Then the tailgate optimization was validated by experiment, which improved the development efficiency. |
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| Keywords: | Time-domain TPA Road noise Sound quality Hybrid test-CAE method |
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