| Study on Influence of Belt Structure on High-speed Temperature Field of PCR Tire with Complex Pattern |
| Received:August 16, 2021 Revised:August 16, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.08.0578 |
| Key Words: PCR tire；complex pattern；belt；high-speed temperature field；cord steering effect；finite element analysis |
| Author Name | Affiliation | E-mail | | SHICAIXIA | Qingdao Doublestar Tire Industry Co., Ltd. | caixia2006a@126.com | | MENGZHAOHONG* | Qingdao Doublestar Tire Industry Co., Ltd. | mengzhaohong0703@163.com | | SU Ming | Qingdao Doublestar Tire Industry Co.，Ltd， | | | WANG Jun | Qingdao Doublestar Tire Industry Co.，Ltd， | | | LUO Baoyu | Qingdao Doublestar Tire Industry Co.，Ltd， | | | HE Yan | Beijing Research and Design Institute of Rubber Industry Co.，Ltd | |
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| Abstract: |
| The 3D modeling and high-speed heat build-up simulation analysis of the PCR tire with
complex pattern were carried out. The influence of belt structure on the tire high-speed temperature field was
studied from the perspective of thermodynamics. The mechanism of delaying or accelerating material fatigue
failure by the coupling of cord steering effect and pattern structure was analyzed. The results showed that，
the correlation between tire high-speed heat build-up and belt structure parameters was，from large to small,
the belt cord angle，the total belt width and the belt cord warp density. In the tire driving speed range under
investigation，when the driving speed increased by 20 km·h-1，the temperature increase of each tire failure
observation point was greater than 3 ℃，and the temperature difference of the same observation point on the
left and right sides of the tire model increased with the increase of driving speed. The tread pattern groove
structure played a very important role in the rapid diffusion of heat inside the tire，and a reasonable pattern
structure could delay tire high-speed failure. However，the structural layout of the tread pattern needed to
consider the influence of cord steering effect in order to avoid the mutual interaction between the two which
might accelerate the fatigue failure of rubber materials. |
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