Noise reduction mechanism of truck radial tire based on modified carcass string contour design

被引：0
|
作者：
Yang J. [1 ]
Xia Q. [1 ]
Zhou H.-C. [1 ]
Wang G.-L. [1 ]
机构：
[1] School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang
来源：
| 1600年 / Editorial Board of Jilin University卷 / 51期
关键词：
Modified carcass string contour; Noise reduction method; Truck radial tire; Vehicle engineering; Vibration noise;
D O I：
10.13229/j.cnki.jdxbgxb20200505
中图分类号：
学科分类号：
摘要：
Taking the truck radial tire 295/80R22.5 as the research object, the characteristics of vibration noise were analyzed using modal acoustic transfer vector technique and the acoustic boundary element theory. By means of modal acoustic contribution analysis method, the contribution of each modal shape to tire vibration noise was studied. Based on the this, the carcass chord contour design theory was used to redesign the radial tire. Then, the mechanism of reducing tire vibration noise was analyzed through acoustic contribution analysis. Compared to original designed tire, the redesigned tire reduces 7.48% sidewall mass and 1.98 dB tire vibration noise respectively. This is due to that the adoption of the modified carcass string contour design theory significantly reduces the vibration acceleration response of the tread and sidewall, especially at the peak of 440 and 488 Hz. Furthermore, the redesigned tire reduces noise pressure of positive acoustic contribution (tire tread and sidewall, respectively) and increases the numbers of the negative panels. © 2021 Editorial Board of Journal of Jilin University (Engineering and Technology Edition). All right reserved.
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页码：1198 / 1203
页数：5
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