摘要
建立了车辆动力传动系的力学模型，并用平均法对该力学模型进行了分析，得知：动力传动系在高滑转率下常会失稳，从而在传动系中产生自激振动，对车辆产生了不利影响。给出了传动系的稳定性判别式，讨论了影响传动系稳定性的因素，为研究抑制自激振动的措施提供了理论依据。
Self excited vibration often occurs in vehicle power train when the vehicle runs under high slipping conditions such as heavy loading or accelerating. The self excited vibration in vehicle power train is often related to the stability of the power train. In this thesis, to find the stable criterion for the power train, the mechanics model of vehicle power train is established and the motion equation is given, which is sequentially analyzed by KBM method. From the analysis, it shows that vehicle power train may become unstable under high slipping condition and induces self excited vibration in the power train. Stability criterion of the vehicle power train is also given to judge whether the self excited vibration can occur or not. Parameters influencing the power train stability are also found; they are: axle shaft damping, slope of the adhesive coefficient curve, vehicle weight, moment of the engine and the transmission, engine speed, etc.. It also shows that the larger the axle shaft damping, the lesser the unstability of vehicle power train. Moreover, the self excited vibration is more prone to occur if the curve slope of the adhesive coefficient is larger.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
1999年第1期1-4,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金
关键词
传动系
自激振动
稳定性
车辆
Transmission, Self excited vibration, Stability
