Inverse Design Method for Impeller Capacity Optimization of Hydrodynamic Torque Converter

doi:10.12382/bgxb.2022.0707

Abstract

Abstract:

To optimize the blade shape while improving the flow field distribution characteristics, an optimization design of the impeller’s capacity performance is proposed by designing the blade load distribution of the impeller and combining the inverse design method in the capacity design process of the torque converter. The results show that the proposed design method can increase the impeller’s capacity coefficient by 5.2%, while the load amplitude applied to the blade by the internal flow field is reduced by 4.9%, indicating that the inverse design method can realize the optimization of capacity.

Key words: inverse design method, hydrodynamic torque converter, cascade system, blade load distribution, directional design

CLC Number:

TH137.332

KE Zhifang, WEI Wei, LIU Cheng, GUO Meng, ZHANG Jiahua, YAN Qingdong. Inverse Design Method for Impeller Capacity Optimization of Hydrodynamic Torque Converter[J]. Acta Armamentarii, 2023, 44(1): 51-60.

Figures/Tables 13

Fig.1 Diagram of flow passage section curve and direction

Fig.2 Comparison result of blade load distribution for torque converter

Fig.3 Dynamic load distribution result of the impeller blade

Fig.4 Blade load distribution result of torque converter

Fig.5 Torus result of the impeller and the meshing results in the inverse design case

Fig.6 Blade load distribution of the impeller and its optimizaiton design result

Fig.7 Design result of the blade load distribution in the torus

Fig.8 Blade load distribution design result of the impeller

Fig.9 Blade comparison results before and after inverse design

Fig.10 Performance comparison result of the torque converter

Fig.11 Comparison of the average blade load of torque converter

Fig.12 Pressure difference near the blade before and after optimization

Fig.13 Relationship between the dynamic load and the torque performance result of the impeller

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