Study Of Driving Performance Analysis Of The Tracked Tideland Vehicle

The crawler track walking device is an important section of the tracked tideland vehicle, which is the chassis walking and bearing the weight of the vehicle. As compared with wheel vehicle, the tracked vehicle has the characteristic of minishing grounding pressure, increasing tractive and appendiculate performance, and strengthening traffic ability on soft ground.Firstly, this paper introduces the drive principle of tracked vehicle, kinematics of crawler track walking device, and analyzes the force performance of tideland soil. Furthermore, on this theory, the grounding pressure, sinkage of the tracked tideland vehicle, the running resistance and driving force are analyzed and calculated. As a result, this data can be input of the simulation of tracked tideland vehicle, and validate virtual prototype model of the tracked tideland vehicle. Furthermore, this paper study the theory of steering of tracked vehicle, and calculate steering resistance and steering velocity in order to provide input for steering simulation of the tracked tideland vehicle.Secondly, this paper makes an introduction on RecurDyn which is multi-body dynamics simulation software, and studies the generalized recursive formulation of multi-body dynamics. In the RecurDyn/Track-LM, the all virtual prototype model of tracked tideland vehicle can be established, which include trolley, driving wheel, track roller, oriented roller, holding roller and track chain.Lastly, this paper studies and analyzes driving performance of the crawler track walking device of tracked tideland vehicle. By the simulation of fore driving straightly of tracked tideland vehicle in constant velocity, this paper proves that it is possible to study the tracked vehicle by virtual prototype. The contact force between the track and driving wheel or soft ground is contrasted and studied in three gradient road, and the steering radius, transverse angle velocity and acceleration is analyzed in 20m steering process of tracked tideland vehicle.The study on the driving performance of the crawler track walking device of tracked tideland vehicle in this paper, provides proof for the feasibility of virtual prototype technology, and attains a lot of rules in different work condition, and the virtual prototype model is useful to the design of tracked tideland vehicle, which decrease the cost of physics model in research, and shorten the period of exploitation in new product, is also a method for the study of other tracked vehicle.