基于格子玻尔兹曼方法的包围距离对液力变矩器搅油损失影响研究  

Research on influence of housing distance on hydraulic torque converter’s churning loss based on lattice Boltzmann method

作　　者：张金豹 胡铮[1] 张金乐[1] 柳泓蛰 邹天刚[1] ZHANG Jinbao;HU Zheng;ZHANG Jine;LIU Hongzhe;ZOU Tiangang(China North Vehicle Research Institute,Beijing 100072)

机构地区：[1]中国北方车辆研究所,北京100072

出　　处：《机械设计》2025年第3期48-55,共8页Journal of Machine Design

基　　金：武器装备预先研究项目(ZQ2019520811);基础加强计划(173计划)重点基础研究项目(2020-JCJQ-ZD-209-00)。

摘　　要：为减小综合传动装置中液力变矩器的搅油损失,文中通过格子玻尔兹曼方法(LBM)对某型号液力变矩器的不同包围距离进行了多相流场仿真。首先通过液力变矩器搅油损失试验对基于格子玻尔兹曼方法的搅油损失仿真结果进行验证,然后设计仿真方案并进行仿真试验,得到不同轴向和径向包围距离下的液力变矩器搅油损失。由仿真结果可知:相比轴向距离,径向距离对液力变矩器搅油损失的影响更大;随径向距离的增大,搅油损失呈浴盆状曲线分布。最后根据上述结论得出液力变矩器包围距离的设计准则,该准则能够为旋转件周围结构的距离提供优化设计,以及综合传动装置效率提升提供有效支撑。In this article,in order to suppress the churning loss of the integrated transmission device’s hydraulic torque converter(HTC),the lattice Boltzmann method(LBM)is used to carry out the multi-phase flow simulation on the hydraulic torque converter with different housing distances.Firstly,the hydraulic torque converter’s churning loss is subject to the test,in order to verify the results obtained from the churning-loss simulation based on the lattice Boltzmann method.Then,the simulation scheme is designed and the simulation test is conducted,in order to identify the hydraulic torque converter’s churning loss with different axial distances and radial distances.Form the simulation results,some conclusions are summarized:the radial distance has stronger influence on the churning loss than the axial distance;a bathtub curve trend is presented on the churning loss with the ever-growing radial distance.Finally,these conclusions are used to design the guidelines for the torque converter’s housing distance.The guidelines provide effective reference for optimization design of the rotating part’s housing distance and higher efficiency of the integrated transmission device.

关 键 词：液力变矩器 搅油损失 包围距离 格子玻尔兹曼方法 多相流场仿真 优化设计 

分 类 号：U463.22[机械工程—车辆工程]