智能系统学报2012，Vol.7Issue(2)：183-188,6.DOI:10.3969/j.issn.1673-4785.201111013
动力总成振动对车内噪声的传递路径影响
Transfer path analysis of power train vibration on automotive interior noise
摘要
Abstract
In order to research the influence of power train vibration on automotive interior noise, the principle of transfer path analysis (TPA) was introduced. The automotive interior noise which is caused by power train excitation was considered. The method and procedure of TPA were studied using LMS/TPA software. The dominant transfer path of mount vibration which has an influence on the interior noise was identified. The results show that the power train excitation influences the interior noise most, and the right mount in the Z direction has the most influence on interior noise. In order to reduce interior noise under this condition, the emphasis should be put on the right mount in order to better improve isolation performance. By applying the TPA method, the amplitude of every transfer paths'partial contribution was identified and the phase relationship among the contribution amplitudes was given. This paper provides a basis for the design of power train mounts.关键词
传递路径分析(TPA)/振动源识别/动力总成振动/车内噪声Key words
transfer path analysis/ vibration source identification/ powen train libration/ automotive interior noise分类
信息技术与安全科学引用本文复制引用
李未,李庆华..动力总成振动对车内噪声的传递路径影响[J].智能系统学报,2012,7(2):183-188,6.基金项目
吉林省教育厅“十一五”科学技术研究计划资助项目(2010164) （2010164）
汽车仿真与控制国家重点实验室开放基金(20111106). （20111106）
