The Research on Selecting the Optimum Coefficient of Inharmonious Motion for the Front Wheel Assist Tractor

Based on dynamic analysis for the Front Wheel Assist(FWA) tractor,a calculating and analysing method on selecting the optimum coefficient of inharmonious motion for the FWA tractor is described in this paper and the mathematical odels are also established.The article first time dlefines the ratio of thrust of front wheels to that of rear wheels.Which is an important parameter affeeting the tractive performance of the FWA tractor and establishes the conditon of no power circulation of the FWA tractor.The optimum coefficient of inharmonious motion for a FWA tractor (UTB-445)is also given.     

拖拉机前轮助推性能试验

在混凝土路面和田间2种情况下，对拖拉机前轮不同负重及前后轮不同线速比分别进行了前轮助推力和牵引效率性能试验，找出了前轮助推的最佳工况。     

Research on Power Circulation in of a front Wheel Assist Tractor

Base on dynamic analysis for a Front Wheel Assist(FWA) tractor,a method of calculating and analyzing on the critical angle of steering for a FWA tractor is described in this paper,The mathematical model is also established here.The critical steering angle which is a important parameter affecting the steering performance for a FWA tractor is defined in the article.