华中科技大学学报（自然科学版）2024，Vol.52Issue(12)：37-44,8.DOI:10.13245/j.hust.241204
变矩器解锁工况对前置型缓速器充液特性的影响
Influence of unlocking condition of torque converter on the filling characteristics of retarder
摘要
Abstract
In addressing the task of predicting the steady-state braking torque of the retarder under torque converter unlocking state,the hydraulic-hydrodynamic co-simulation model was constructed,which considered the reverse transmission condition of the torque converter and combined the computational fluid dynamics(CFD)simulation model with test data.Considering the pumping effect of the retarder and the change of outlet pressure,the pressure-flow characteristic and the filling characteristic of the retarder was obtained,and bench test were carried out.The results show that:the retarder has a pumping effect,which increases the flow of the system;the pressure and flow characteristics obtained by the hydraulic-hydraulic co-simulation model are consistent with the test data,and the relative error between the simulation data and the test results is not more than 10％.The filling rate of the retarder is related to the outlet pressure and the speed of the rotor.The error of the filling rate predicted by the co-simulation model and the test is not more than 5％,the filling rate increases as the outlet pressure increase and the speed of the rotor decreases.关键词
液力缓速器/充液率/解锁工况/液压-液力系统/台架试验Key words
hydrodynamic retarder/filling rate/unlocking condition/hydraulic-hydrodynamic system/bench test分类
机械制造引用本文复制引用
魏巍,王羽泽,米家宝,黄静秋..变矩器解锁工况对前置型缓速器充液特性的影响[J].华中科技大学学报（自然科学版）,2024,52(12):37-44,8.基金项目
国家部委创新计划资助项目(237099000000170009). （237099000000170009）
