Hybrid propagation model for the TBR tire near-far field noise generated from point/line sound sources

被引：0
|
作者：
Cao J. [1 ]
Huang W. [1 ,2 ]
Zhang C. [3 ]
Hou D. [3 ]
Xiang D. [4 ]
Wei Y. [2 ]
机构：
[1] Center for Structural Acoustics and Machine Fault Diagnosis, School of Mechanical & Automotive & Engineering, Qingdao University of Technology, Qingdao
[2] State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing
[3] Zhongce Rubber Group Co., Ltd., Hangzhou
[4] E-Rubber Technology (Beijing) Co., Ltd., Beijing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 18期
关键词：
Near-far field noise; Noise hybrid propagation model; Point/line source; TBR tire;
D O I：
10.13465/j.cnki.jvs.2020.18.036
中图分类号：
学科分类号：
摘要：
By virtue of the theory about the sound propagation from ideal point sound sources and line sound sources and considering the attenuation effect of propagation route on tire noise, a TBR hybrid propagation model for the tire noise in near and far field generated from point/line sound sources was constructed using the FEM simulation and test analysis. By studying the near-far field noise propagation of 315/80R22.5 tpye TBR tires, the key parameters of the mixed propagation model were calibrated, and the predicted value by the model were compared with the test results, which shows that the maximum deviation of the predicted attenuation value by the model is 1.4 dB (A), and the average deviation is 0.92 dB (A).In the region of outdoor noise measurement, and at the positive side of the tire, the hybrid propagation model can give the sound pressure level quantitatively at different measuring point.The sound pressure level of far field noise can be predicted from that of near field noise. At the positive side of the tire, when the measuring point is at a distance in the range of 0-8 m, and the measuring point height is in the range of 0-1.264 m, the measuring point height has little influence on the noise pressure level at the same equivalent measuring point distance.The research work has certain reference value for the low noise tire design and development, the tire near-far field noise propagation analysis and the traffic noise reduction. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：262 / 268
页数：6
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