文章摘要
Study on Influence of Vehicle Steady-state Cornering on Thermal-Mechanical Coupling Response of Tires
Received:February 05, 2022  Revised:February 09, 2022
DOI：10.12136/j.issn.1000-890X.2023.04.0243
Key Words: vehicle；tire；steady-state cornering；thermal-mechanical coupling response；dynamic simulation；temperature field distribution；finite element method
Author NameAffiliationE-mail
MENG Zhaohong* 1.Qingdao Doublestar Tire Industry Co., Ltd；2. Qingdao Lunyun Design and Research Institute Co.，Ltd mengzhaohong0703@163.com 
SHI Caixia Qingdao Doublestar Tire Industry Co., Ltd  
Zhou Lei Qingdao Doublestar Tire Industry Co., Ltd  
ZHAI Mingrong Qingdao Lunyun Design and Research Institute Co.，Ltd  
YU Chenglong Qingdao Lunyun Design and Research Institute Co.，Ltd  
ZHUANG Lei Qingdao Lunyun Design and Research Institute Co.，Ltd  
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Abstract:
      The influence of vehicle steady-state cornering on the thermal-mechanical coupling response of the tires was studied. The results showed that when the tires were warmed up by means of steady-state cornering before the vehicle handling stability test，the tire temperature gradient and amplitude fluctuation under the conditions of constant cornering radius and variable lateral acceleration of the vehicle body were larger than those under the conditions of constant lateral acceleration and variable cornering radius. During the vehicle steady-state cornering，the tire temperature change was very sensitive to the lateral acceleration fluctuation of the vehicle body. When the vehicle turned left，the increase of lateral acceleration was positively correlated with the load distribution of the right tire. Under the action of sideslip combined with camber condition，the tire temperature rise could be aggravated. The tire temperature change caused by warming up altered the response of mechanical properties such as tire sideslip and longitudinal slip，causing unstable hysteresis amplitude in the nonlinear slip zone，which easily lead to poor repeatability of vehicle handling stability test result，and thus brought difficulties to vehicle dynamic simulation verification and model adjustment. The results of this study could provide guidance for vehicle tests.
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