[1]李晨阳,刘鹏,陈宏,等.基于驾驶室舱内声学特性的动力吸振器设计研究[J].郑州大学学报(工学版),2021,42(04):47-52.
 Design and Research of Dynamic Vibration Absorber ba<x>sed on Acoustic Characteristics of Interior Sound Field in a Vehicle[J].Journal of Zhengzhou University (Engineering Science),2021,42(04):47-52.
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基于驾驶室舱内声学特性的动力吸振器设计研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
42
期数:
2021年04期
页码:
47-52
栏目:
出版日期:
2021-07-30

文章信息/Info

Title:
Design and Research of Dynamic Vibration Absorber ba<x>sed on Acoustic Characteristics of Interior Sound Field in a Vehicle
作者:
李晨阳刘鹏陈宏王坤
文献标志码:
A
摘要:
本文提出了基于车内声学特性的动力吸振器的设计方法。利用有限元法建立汽车车身结构和内部声腔声固耦合模型,得到驾驶员右耳处声压响应,分析该点面板声贡献量。将声贡献量最高的面板作为动力吸振器控制对象,利用多项式法识别该面板的等效质量。依据此等效质量设计动力吸振器。结果表明:与根据振型腹点确定动力吸振器控制对象,利用附加质量法识别受控面板等效质量所设计动力吸振器相比,根据本文所提出方法设计的动力吸振器可以进一步降低车内噪声。
Abstract:
It is proposed that a design method of dynamic vibration absorber (DVA) is ba<x>sed on the acoustic characteristics of a vehicle in this article. The finite element method is used to establish the acoustic-structure coupling model of car body structure and sound cavity. The sound pressure at the right ear of a driver is predicted, and the panel acoustic pressure contribution at the field is also calculated. The equivalent mass of the highest acoustic contribution panel as the ob<x>ject of a DVA is identified by the orthogonal polynomial method. And the DVA is designed ba<x>sed on the equivalent mass. The results show that: compared with the DVA designed according to the antinode and the equivalent mass determined by the additional mass method, the DVA designed according to the method proposed in this paper can further reduce the interior noise.
更新日期/Last Update: 2021-08-26