重型车扭转减振器匹配分析及试验验证  

Matching analysis and experimental verification of heavy-duty vehicle torsional shock absorbers

作　　者：王凯峰 马星宇[2] 朱佳兴 徐向阳 冯浩成[2] 雷雨龙 WANG Kai-feng;MA Xing-yu;ZHU Jia-xing;XU Xiang-yang;FENG Hao-cheng;LEI Yu-long(School of Transportation Science and Engineering,Beihang University,Beijing 100191,China;Automotive Transmission Engineering Research Institute,Shaanxi Fast Gear Co.,Ltd.,Xi'an 710119,China;College of Automotive Engineering,Jilin University,Changchun 130022,China)

机构地区：[1]北京航空航天大学交通科学与工程学院,北京100191 [2]陕西法士特齿轮有限责任公司汽车传动工程研究院,西安710119 [3]吉林大学汽车工程学院,长春130022

出　　处：《吉林大学学报(工学版)》2025年第1期36-51,共16页Journal of Jilin University:Engineering and Technology Edition

基　　金：陕西省“两链”融合企业(院所)联合重点项目(2022LL-JB-21);陕西省秦创原“科学家+工程师”队伍建设支撑项目(2022KXJ-029)。

摘　　要：为研究集成于液力自动变速器内部的减振器在大吨位重型车辆上的匹配应用特性,以空载、半载、满载3种吨位的重型车辆及适配发动机参数为输入,建立了基于AMESim仿真平台的整车传动系统模型,利用该模型分析了固定油门开度、不同变速器挡位下的不同减振器扭转特性参数对整车传动系统匹配特性的影响,并通过扭振试验台对仿真模型的精确性进行了验证。结果表明:车重对减振器与整车的匹配特性有显著影响,不同车重对应的减振器等效刚度安全域值不同;不同挡位下减振器的作用效果有显著差异,减振器在高挡区时更容易放大输入转速的共振振幅;二级刚度扭转减振器可改善恶劣工况下的挡位变速器输入端转速波动,第1级扭转刚度相较于第2级扭转刚度对扭振的有益影响更大,通过分析不同阻尼力矩下的扭振结果确定了最小阻尼力矩。In order to study the matching application characteristics of the shock absorber integrated in the AT (Automatic transmission) on the large-tonnage intelligent transportation equipment,the parameters of no-load,half-load and full-load heavy-duty vehicles and the adaptive engine were taken as the input,a complete vehicle transmission system model was established based on AMESim simulation platform.The influence of different damper torsional characteristic parameters at different transmission gears on the matching characteristics of the vehicle transmission system was analyzed in the fixed throttle opening and the accuracy of the simulation model was verified through a torsional vibration experimental platform.The results show that the vehicle weight has a significant impact on the matching characteristics of the shock absorber and the whole vehicle,and the equivalent stiffness safety region value of the shock absorber corresponding to different vehicle weights is different;The effect of the shock absorber at different gears is significantly different.When the shock absorber is at high gear,it is easier to amplify the resonance amplitude of the input speed;The second level torsional stiffness shock absorber can improve the speed fluctuation at the input end of the transmission in harsh working conditions,the first level torsional stiffness has a greater beneficial impact on torsional vibration compared to the second level torsional stiffness,the minimum damping moment was determined by analyzing the torsional vibration results under different damping moments.

关 键 词：扭转减振器 等效刚度 扭转特性 共振 扭振匹配 

分 类 号：U463.2[机械工程—车辆工程]