冲焊型与铸造型液力变矩器性能对比分析

Performance Comparison and Analysis of Stamping/Welding and Foundry Hydrodynamic Torque Converters

为深入了解铸造型与冲焊型液力变矩器的性能差异及其产生原因,结合CFD(computational fluiddynamics)技术的发展,基于相同循环圆、相同叶栅角度设计出2种制造工艺的液力变矩器.采用CFD软件对液力变矩器内部流场进行数值模拟,得到其内部流动特性和外部特性.对计算结果进行深入对比与分析,得到2种制造工艺对液力变矩器性能的影响规律.

To better understand the different performances between the stamping/welding and foundry hydrodynamic torque converters and their contributing causes, two types of hydraulic torque converters are designed on the basis of the same cascade angle and round loop. The internal and external flow characteristics and performances can be figured out by using CFD method to simulate the internal flow field of the hydrodynamic torque converter. The performance comparison between the welding and foundry hydrodynamic torque converters is also done by the calculation and in-depth analysis of the simulation results.