载重汽车AMT气压换挡执行机构设计与动态分析  

Dynamic Analysis and Design on Pneumatic Drive Shift Mechanism of AMT System for Heavy-truck

作　　者：杨小辉[1,2] 徐颖强[1] 李世杰[1] 

机构地区：[1]西北工业大学,陕西西安710072 [2]陕西法士特集团,陕西西安710077

出　　处：《机床与液压》2010年第3期64-66,90,共4页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(50875214);国家自然科学基金资助项目(106721340)

摘　　要：根据AMT选-换挡执行机构的设计要求,开发设计了某载重汽车AMT换挡气压系统及换挡执行机构。根据气压原理,建立选-换挡机构动态数学模型,以MATALAB/SIMULINK软件为平台,进行该执行机构换挡过程的动态模型建立,针对不同气源压力下执行机构的进、排气腔的压力和行程变化进行了动态仿真分析,为AMT的选-换挡执行机构的设计研究提供理论依据。A kind of pneumatic system and drive shift mechanism of automated mechanical transmission （AMT） system for heavy-truck was introduced based on the design requests of the drive shift mechanism. The dynamic mathematical model of the drive shift mechanism was established based on pneumatic principle. The dynamic model of this mechanism was built by MATLAB / SIMU- LINK software. The variety of pressure and stroke of intake/exhaust chamber was simulated under different air pressures.

关 键 词：AMT 气压 选-换挡执行机构 仿真 

分 类 号：U463.212[机械工程—车辆工程]