Research on the simulation of the driving system of crawler bulldozer

The multibody dynamics model of a crawler bulldozer is established in this paper using tracked vehicles´ subsystem Track (LM) of multibody dynamics simulation software RecurDyn, and the simulation analysis of driving system performance is carried out. In the process of simulation, this paper focuses on the analysis of the road wheel´s force, driving wheel´s force and crawler tension in the process of operation in two kind pavement of the clay and hard. Then, the improvement measures have been put forward that the driving wheels had better use shock absorber and the strength and stiffness of track shoe pin should be increased. The simulation analysis result provides reference for the structure optimization design of crawler bulldozer and how to extend the service life of the crawler driving system.