Based On LMS.Virtual.Lab Motion Tracked Vehicles Modeling And Simulation

The tracked driving system as an important form of vehicle driving system, plays animportant role in the construction, agriculture, military and other fields. As the demand forhigher carrying capacity and speed of the tracked vehicle, the research on tracked vehicledriving system became the key link.Previous studies on the tracked vehicle driving system was mainly by means ofexperience and large number of experiments, which needed long cycle time and high cost.What’s more, there would be a great threat to the safety of the navigating mate when insome vehicle experiment on the extreme adverse driving conditions. Especially in today,the health is becoming more and more valued and the self-driving technology is imperfect,so it is not realistic for the human to complete the dangerous experiment.Computer simulation technology means using the computer simulation of trackedvehicle running on the road, which to some extent reduce the number of the experiment,shorten the research period and avoid some unnecessary risk. At present, a lot of thesimulation modeling for the tracked vehicle driving system using parametric modeling,which is simple and efficient, but the modeling principle is to input the parameter in theplatform which has been construct by software, the designer can’t modify the existingmodel structure according to the need.In terms of the above issues, this paper has completed the modeling entities for thefinished vehicle driving system using the LMS. Virtual. Lab Motion platform. Throughimporting the part model by independent drawing, and defining kinematic pair, strength,stiffness, damping, torque and contact parameters, we completed the finished automobiledriving system modeling. The problem of track moving off the wheel caused by crawlertension and loose caterpillar at static equilibrium position drop has been conquered in theprocess for modeling, and the difficulties and details for tracked vehicle also has beensummarized. To verify the model’s reliability, we established the12columns shaking tablefor test, furthermore we integrated it with the finished automobile driving system modeling.This integrated modeling was used for four typical types of road simulation, the simulationresults would be compared with the experimental data for the pattern checking. Finally, thepaper used the checked tracked driving system modeling for simulation at several typicaltypes of road such as crossing ravines, climb the vertical wall, the soft ground. Through the analysis of the simulation results，we summarized that the speed and the parameters of soilhas an influence on the finished automobile performance of the tracked vehicle and thecrawler tension. The abnormal mesh of the driving wheel and track also been analysed, andthe stability of the factors for the mesh of the driving wheel and track has finally been findout.