The Kinematics And Dynamics Analysis Of Double-front-axle Steering System In Heavy Truck

To eliminate abnormity wear of tires in double-front-axle system of heavy truck, the kinematics and dynamics analysis method is set forth. On the base of the results for heavy double-front-axle truck load distributing and manipulate stability, tire uniformity load condition and deficiency steering characteristic condition of heavy double-front-axle truck are put forward. Steering trapezia space movement formula, double-swing-arm space movement formula and double-swing-arm movement formula in actual status of heavy double-front-axle truck are fetched. Optimization models of steering trapezia and double-swing-arm are founded and optimization arithmetics of transmission system in double-front-axle steering are compiled. This paper takes ADAMS 12.0 as analysis tool and MTLAB 6.5 as design tool, compiles correlative logics and arithmetics and process system simulation analysis. Conclusions and design models of this paper are validated on the experiment of JiangHuai heavy truck. The results show the analysis and design methods are correct.