TBR轮胎噪声近-远场点/线声源混合传播模型研究

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摘要 TBR轮胎载重大、强度高、噪声大，对其噪声传播规律研究具有重要的工程应用价值。采用仿真与试验联合分析方法，基于理想点声源与线声源传播理论，考虑传播距离对轮胎噪声的衰减效应，构建了TBR轮胎噪声近-远场点/线声源混合传播模型。通过研究315/80R22.5型号TBR轮胎近-远场噪声传播规律，标定提出混合传播模型的关键参数，并将模型预测值与试验结果比较，表明：混合传播模型预测衰减值的最大差值为1.4dB(A)，平均差值为0.92dB(A)；在室外噪声测试距离范围内，该混合传播模型给出了轮胎正侧方向、不同测点上声压级的定量关系，可由近场噪声声压级预测远场噪声声压级；在轮胎正侧方向测点距离0-8m范围内，测点高度在0-1.264m范围内，等效测点距离相同时，测点高度对噪声声压级的影响较小。研究工作对低噪声轮胎设计研发、轮胎近-远场噪声传播规律研究和交通降噪具有一定的参考价值。

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	曹金凤1
	黄伟1
	2
	张春生3
	侯丹丹3
	项大兵4
	危银涛2

关键词 ：混合传播模型, 点/线声源, 近-远场噪声, TBR轮胎

Abstract：TBR tire has the characteristics of heavy load, high strength and high noise, the research on noise propagation law of which has important engineering application value. Based on the theory of ideal point sound source and line sound source propagation and considering the attenuation effect of propagation distance on tire noise, the TBR hybrid propagation model of tire noise near and far field point/line sound source has been constructed using the FEM simulation method and test. By studying the near-far field noise propagation law of 315/80R22.5 tpye TBR tires, the key parameters of the mixed propagation model have been calibrated, and the predicted value of the model has been compared with the test results, which shows that the maximum difference of the predicted attenuation value of the model is 1.4db (A), and the average difference is 0.92db (A). In the range of outdoor noise measurement, and in the positive side of tire, the hybrid propagation model gives the quantitative relation of sound pressure level at the distance measurement point. The sound pressure level of far field noise can be predicted from that of near field noise. In the positive side of the tire, when measuring point is in the range of 0-8m, and the measuring point height is in the range of 0-1.264m, the measuring point height has little influence on the noise pressure level with the same equivalent measuring point distance. The research work has certain reference value for low noise tire design and development, tire near-far field noise propagation law research and traffic noise reduction.

Key words： noise hybrid propagation model point/line source near-far field noise TBR tire

收稿日期: 2019-01-21 出版日期: 2020-09-15

引用本文:

曹金凤1，黄伟1,2，张春生3，侯丹丹3，项大兵4，危银涛2. TBR轮胎噪声近-远场点/线声源混合传播模型研究[J]. 振动与冲击, 2020, 39(18): 262-268.
CAO Jinfeng1,HUANG Wei1,2,ZHANG Chunsheng3,HOU Dandan3,XIANG Dabing4,WEI Yintao2. Hybrid propagation model for the TBR tire near-far field noise generated from point/line sound sources. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(18): 262-268.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I18/262

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