【摘 要】
：
In order to explore the mechanism of pattern groove air pumping noise, the tire model of 205/55 R16 was chosen as the research object for this paper. By using a rolling analysis of the 205/55 R16 pass
【机 构】
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School of Automotive and Traffic Engineering, Jiangsu University
【出 处】
：
第19届亚太汽车工程年会暨2017中国汽车工程学会年会
论文部分内容阅读
In order to explore the mechanism of pattern groove air pumping noise, the tire model of 205/55 R16 was chosen as the research object for this paper. By using a rolling analysis of the 205/55 R16 passenger car tire, and extracting the volume change of the pattern groove produced as the tire roll across the road, a model of the air pumping noise was established using computational fluid dy- namics(CFD), and apply the groove volume change information as the noise compute boundary condition. The noise spectrum compari- son between the simulation and measured results was used to validate the proposed analysis method and model. By investigating the effects of tire load, rolling speed and inflation pressure on the air pumping noise, and obtaining a measurement of the air flow field and varia- tion characteristics inside the tire footprint domain. The results shows that dynamic pressure, which results from unsteady air flow, act- ing on the groove surface is the main generate source of the noise that air pumping noise.
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