汽车工程 ›› 2022, Vol. 44 ›› Issue (2): 290-298.doi: 10.19562/j.chinasae.qcgc.2022.02.017
所属专题: 底盘&动力学&整车性能专题2022年
• • 上一篇
收稿日期:
2021-08-31
修回日期:
2021-11-04
出版日期:
2022-02-25
发布日期:
2022-02-24
通讯作者:
汪怡平
E-mail:wangyiping@whut.edu.cn
基金资助:
Zhiteng Dai1,Yiping Wang1(),Chuqi Su1,Qingyang Wang2
Received:
2021-08-31
Revised:
2021-11-04
Online:
2022-02-25
Published:
2022-02-24
Contact:
Yiping Wang
E-mail:wangyiping@whut.edu.cn
摘要:
鉴于随着后视镜、A柱、天窗等部位的气动噪声源得到有效控制,汽车车底高速气流对车内噪声的影响逐渐凸显,本文中对汽车底部高速气流引起的车内噪声进行研究。首先,应用计算流体力学(CFD)和有限元分析(FEA)相结合的方法计算实车模型车体高速气流引起的车内气动噪声,结果表明,声压激励的传递效率明显高于湍流压力激励,车内噪声随频率升高先增后减,主要集中于100至300 Hz的中低频段。接着,引入模态声传递向量方法(MATV),基于实车模型进行仿真,并与试验和FEA计算结果对比,结果表明,与试验结果很好吻合,而其计算效率比FEA提升了96%。最后,基于MATV方法分别计算了实车模型添加发动机底护板和气坝后车内同一监测点的噪声,总声压级分别降低了2.8和1 dB。
戴志腾,汪怡平,苏楚奇,王庆洋. 基于MATV的车底高速气流引起的车内噪声计算[J]. 汽车工程, 2022, 44(2): 290-298.
Zhiteng Dai,Yiping Wang,Chuqi Su,Qingyang Wang. Calculation of Vehicle Interior Noise Induced by High-Speed Underbody Airflow Based on MATV Method[J]. Automotive Engineering, 2022, 44(2): 290-298.
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