摘要
本文采用Dittus-Boelter公式建立了活络轮胎模具换热系数模型,该模型能有效考虑轮胎模具升温时壁面的温升过程,采用该换热系数模型作为对流边界条件进行轮胎模具温度场模拟分析。设计测温实验,将得到的测温数据与模拟数据作对比。结果表明:与常用恒定温度边界相比,采用对流边界能有效提高模拟精度,与实验测温结果最大误差从20℃降低至5℃。结果对于轮胎模具优化设计具有指导意义。
The Dittus-Boelter formula was used to establish a flexible tire mold heat transfer coefficient model.This model could effectively consider the temperature rising process of the tire mold when the temperature rose.The heat transfer coefficient model was used as a convection boundary condition to simulate and analyze the tire mold temperature field.The temperature measurement experiment was designed and the temperature measurement data was compared with the simulated data.The results show that comparing with the commonly used constant temperature boundary,the convection boundary can effectively improve the simulation accuracy,and the maximum error with the experimental temperature measurement result is reduced from^(2)0℃to 5℃.The results have guiding significance for the optimal design of tire molds.
作者
石鹏
杜平
孙日文
于翠香
赵阳
张伟
刘志兰
李茂源
张云
周华民
SHI Peng;DU Ping;SUN Ri-wen;YU Cui-xiang;ZHAO Yang;ZHANG Wei;LIU Zhi-lan;LI Mao-yuan;ZHANG Yun;ZHOU Hua-min(Huazhong University of Science and Technology,Wuhan 430074,China;Himile Mechanical Science and Technology(Shandong)Co.,Ltd.,Gaomi 261500,China;Shandong Key Laboratory of Core Tire Mold Technology,Gaomi 261500,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2021年第S01期96-102,共7页
China Plastics Industry
关键词
轮胎模具
传热模拟
对流边界
温度场
Tire Mold
Heat Transfer Simulation
Convection Boundary
Temperature Field
