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基于虚拟样机技术和三维流场理论,应用3D软件Pro/E建立液力变矩器泵轮叶栅流道模型,采用计算流体力学分析软件FLUENT对YJ380型推土机、叉车用液力变矩器泵轮叶栅的内流场进行仿真计算与分析。计算了两种工况下泵轮叶栅流道流场的速度和压力分布,并研究了液力变矩器泵轮叶栅叶片出口角这一关键参数对泵轮转矩、变矩器的变矩系数、传动效率的影响。计算分析和试验结果的对比证明,应用FLUENT软件进行液力变矩器内流场仿真分析具有高的准确性和可靠性。
Based on virtual prototyping technology and three-dimensional flow field theory, the flow path model of hydraulic pump cascade was established with 3D software Pro / E, and the fluid mechanics analysis software FLUENT was used to simulate the performance of YJ380 bulldozer, hydraulic torque converter pump The flow field of wheel cascade is simulated and analyzed. The velocity and pressure distribution of the pump cascade flow field under two conditions were calculated. The key parameters of the outlet angle of the impeller of the torque converter impeller were studied, such as the torque of the pump impeller, Torque coefficient, transmission efficiency. The comparison of calculation and test results proves that the application of FLUENT software to simulate the flow field in the torque converter has high accuracy and reliability.