基于有限元分析的扁平轮胎硫化工艺的优化

硫化是轮胎生产工艺的一个重要步骤,直接决定轮胎的力学性能,是生产中耗能最多的一个环节。传统的扁平轮胎硫化工艺没有考虑后硫化的作用,这可能造成能源的浪费。通过有限元模拟可以了解轮胎硫化的全过程,尤其后硫化在轮胎硫化中所起的作用。如果模拟结果表明后硫化的作用不容忽视,那么传统工艺就有改进的必要和空间。本文在模拟方法上也有所创新,运用子程序HETVAL给橡胶加载反应热,并做了有反应热和无反应热两组硫化模拟,开发ABAQUS后处理模块运用UVARM子程序直观地得到硫化程度场。

Low-profile tire vulcanization process optimization based on finite element analysis

Tire vulcanization was an important step in the production process, directly determining the mechanical properties of the tire, which was the most energy-intensive during the production. The traditional low-profile tire vulcanization process did not take post cure into account, which probably resulted in waste of energy. Finite element simulation of the tire vulcanization could show the whole process, in particular the importance role of post cure in the tire vulcanization. If the simulation results presented that the effect of post cure could not be ignored, then there was need for improvement of traditional process and it provided process optimization space. In this paper, the simulation method was innovative. The subroutine HETVAL was used to load the reaction heat and analysis with reaction heat and analysis without reaction heat were compared. By developing ABAQUS postprocessor, the subroutine UVARM was used to directly get vulcanization degree field.