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某特种车车内中频噪声的混合FE-SEA法分析

张勇 王坤祥 盛陈 欧健 孟天

张勇, 王坤祥, 盛陈, 欧健, 孟天. 某特种车车内中频噪声的混合FE-SEA法分析[J]. 机械科学与技术, 2018, 37(11): 1698-1704. doi: 10.13433/j.cnki.1003-8728.20180118
引用本文: 张勇, 王坤祥, 盛陈, 欧健, 孟天. 某特种车车内中频噪声的混合FE-SEA法分析[J]. 机械科学与技术, 2018, 37(11): 1698-1704. doi: 10.13433/j.cnki.1003-8728.20180118
Zhang Yong, Wang Kunxiang, Sheng Chen, Ou Jian, Meng Tian. Hybrid FE-SEA Analysis of Mid-frequency Cabin Noise in a Special Vehicle[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(11): 1698-1704. doi: 10.13433/j.cnki.1003-8728.20180118
Citation: Zhang Yong, Wang Kunxiang, Sheng Chen, Ou Jian, Meng Tian. Hybrid FE-SEA Analysis of Mid-frequency Cabin Noise in a Special Vehicle[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(11): 1698-1704. doi: 10.13433/j.cnki.1003-8728.20180118

某特种车车内中频噪声的混合FE-SEA法分析

doi: 10.13433/j.cnki.1003-8728.20180118
基金项目: 

重庆市教育委员会科学技术研究项目(KJ1600911)资助

详细信息
    作者简介:

    张勇(1977-),副教授,研究方向为车辆动力学与控制、车辆NVH测试与分析,zhangyong@cqut.edu.cn

Hybrid FE-SEA Analysis of Mid-frequency Cabin Noise in a Special Vehicle

  • 摘要: 为了更好地对特种车车内中频噪声进行分析,采用混合有限元-统计能量分析方法,建立某特种车混合FE-SEA模型,根据理论方法获取各子系统的模态密度、内损耗因子、耦合损耗因子以及有限元车身的辐射效率;通过实车试验获取发动机悬置和分动箱悬置处的激励;把获取的参数和激励施加在混合FE-SEA模型中,并在200~800 Hz频率范围内,对有限元结构子系统进行模态计算,然后仿真预测获取车内噪声声压级,同时与测试结果作对比,绝对误差在7%以内,表明仿真模型精度较好;最后对车身板件的功率贡献量进行了分析,得出驾驶室头部声腔的功率贡献量主要来于顶盖和下部声腔。
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出版历程
  • 收稿日期:  2018-01-04
  • 刊出日期:  2018-11-05

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