无胶须轮胎模具弹簧气孔套进气段结构对喷射流动参数的影响
|
摘要
基于计算流体动力学技术,利用大型流体工程计算软件CFX15. 0,模拟研究无胶须轮胎模具弹簧气孔套进气段结构对喷射流动参数的影响。结果表明:在相同弹簧行程下,随着阀杆锥角增大,流阻因数先减小后逐渐增大,而在相同阀杆锥角下,流阻因数则随弹簧行程增大而总体减小;阀杆锥角和弹簧行程对流量系数和出口端流量的影响则相反。本研究获得最佳喷射流动参数的条件为:弹簧行程小于(大于)0. 2 mm时,阀杆锥角取65. 4°(69. 4°)。
Based on computational fluid dynamics technology,the effect of the inlet section structure of spring vent sleeve for burr-free tire mould on the injection flow parameters was simulated by using large fluid engineering calculation software CFX15. 0. The results showed that,at same spring stroke,the flow resistance coefficient decreased first and then increased gradually with the increasing of the valve stem cone angle,while the flow resistance coefficient decreased with the increasing of spring stroke at same valve stem cone angle. However, the effect of valve stem cone angle and spring stroke on the flow coefficient or outlet flow was opposite. The condition to obtain the best jet flow parameters for the study was that the valve stem cone angle was 65. 4°(69. 4°) when the spring stroke was less(greater)than0. 2 mm.
Based on computational fluid dynamics technology,the effect of the inlet section structure of spring vent sleeve for burr-free tire mould on the injection flow parameters was simulated by using large fluid engineering calculation software CFX15. 0. The results showed that,at same spring stroke,the flow resistance coefficient decreased first and then increased gradually with the increasing of the valve stem cone angle,while the flow resistance coefficient decreased with the increasing of spring stroke at same valve stem cone angle. However, the effect of valve stem cone angle and spring stroke on the flow coefficient or outlet flow was opposite. The condition to obtain the best jet flow parameters for the study was that the valve stem cone angle was 65. 4°(69. 4°) when the spring stroke was less(greater)than0. 2 mm.
引文
[1]陈庆湘,林莉.无胶须轮胎模具的发展[J].轮胎工业,2015,35(3):136-139.
[2]孙怀建.轮胎降耗新技术--无胶须轮胎[J].橡塑技术与装备,2012,38(5):24-26.
[3]胡海明,夏鹏建,毛渴新,等.轮胎模具耐磨板磨损分析[J].橡胶工业,2018,65(8):935-937.
[4]谢龙汉,赵新宇.ANSYS CFX流体分析与仿真[M].北京:电子工业出版社,2008:45.
[5]浦哲,冯伟,边慧光,等.子午线轮胎硫化过程定型峰值压力的优化[J].轮胎工业,2014,34(9):566-568.
[6]CRANE工程部.流体流经阀门、管件和管道的流体计算TP410[M].北京:化学工业出版社,2013:36.
[2]孙怀建.轮胎降耗新技术--无胶须轮胎[J].橡塑技术与装备,2012,38(5):24-26.
[3]胡海明,夏鹏建,毛渴新,等.轮胎模具耐磨板磨损分析[J].橡胶工业,2018,65(8):935-937.
[4]谢龙汉,赵新宇.ANSYS CFX流体分析与仿真[M].北京:电子工业出版社,2008:45.
[5]浦哲,冯伟,边慧光,等.子午线轮胎硫化过程定型峰值压力的优化[J].轮胎工业,2014,34(9):566-568.
[6]CRANE工程部.流体流经阀门、管件和管道的流体计算TP410[M].北京:化学工业出版社,2013:36.