内电混合动力机车多出风口牵引风道流场优化研究  

Study on the flow field optimization of multi-outlet traction air duct for diesel-electric hybrid locomotive

作　　者：刘慧芳 朱颖谋 李仕林 施柱 廖致远 LIU Huifang;ZHU Yingmou;LI Shilin;SHI Zhu;LIAO Zhiyuan(State Key Laboratory of Heavy-duty and Express High-power Electric Locomotive;CRRC Zhuzhou Locomotive Co.,Ltd.:Zhuzhou 412001,China)

机构地区：[1]重载快捷大功率电力机车全国重点实验室 [2]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《电力机车与城轨车辆》2024年第3期33-37,共5页Electric Locomotives & Mass Transit Vehicles

基　　金：湖南省重点研发计划(2022WK2013);湖南省科技创新计划(2022GK1060);高新技术产业科技创新引领计划(S2021GXKJCX0247)。

摘　　要：文章采用计算流体力学软件,对内电混合动力机车牵引风道内流场特性进行仿真分析。针对原设计方案牵引风道各出风口风量与需求风量的不匹配问题,提出了在风道内增加挡板的多目标优化算法,研究挡板安装位置和尺寸参数对出风口风量分配的影响规律;基于上述影响规律对挡板参数进行微调,设计了16组优化模型,研究各优化模型的出风口风量与需求风量的匹配性,从而寻找最优模型。结果表明,最优模型的出风口风量与需求风量的相对误差较原设计方案显著降低,各出风口风量基本接近需求风量。In this paper,the computational fluid dynamics software is used to simulate and analyze the internal flow field characteristics of the traction air duct of diesel-electric hybrid locomotive.Aiming at the mismatch between the air volume of each air outlet and the required air volume for the original traction air duct design scheme,a multi-objective optimization algorithm for adding baffles in the air duct is proposed,and the influence of baffle installation position and size parameters on the air volume distribution of air outlets is studied.Based on the above influence law,the baffle parameters are fine-tuned,and 16 sets of optimization models are designed to study the matching between the air volume of air outlets and the required air volume for each optimization model,so as to find the optimal model.The results show that the relative error between the air volume of air outlets and the required air volume for the optimal model is significantly reduced compared with the original design scheme,the air volume of each air ontlet is basically close to the required air volume.

关 键 词：内电混合动力机车 牵引风道 出风口 需求风量 仿真 

分 类 号：U264.55[机械工程—车辆工程]