Effect of dynamic and static friction coefficients of clutch friction plate on shifting performance of high-horsepower bulldozer
Aiming at the problem that the impact of the high-horsepower bulldozer in the process of shifting is too large,two indexes are put forward to evaluate the shifting performance:impact degree and slipping work.The AMESim and MATLAB co-simulation model of the transmission system of the high-horsepower bulldozer is established.Then the influence of the dy-namic and static friction coefficients of the clutch friction plate on the shift impact and slipping work is studied.The results show that the shift impact is the largest when the first gear starts and the second gear drops into the first gear.In the process of the second gear dropping into the first gear,with the increase of the dynamic friction coefficient,the shift combination time decreases,and the impact and slipping work also increase.When the shift is completed,the impact amplitude decreases,and the slipping work does not change with the change of the dynamic friction coefficient.With the increase of the static friction coefficient,the shift impact and slipping work do not change significantly.
AMESimMATLABdynamic friction coefficientstatic friction coefficientimpact degreeslipping work
NETL
NSTL
万方数据
维普
