Modeling Simulation And Optimum Design Of Driveline For All Terrain Vehicle Based On ADAMS/View

All terrain vehicle (ATV) has been widely used and its market is increasingly competitive. Its production is still at the initial stage in China, in which the market is still dominated by (low price products through) the price war. Many studies about ATV have been conducted, but little abut the driveline. In order to study the problems associated with the design driveline, a new design idea and method have been explored to improve ATV's overall matching performance and enhance its market competitiveness.Taking the existing ATV as the research object, the multimode dynamics models of its various components for driveline and vehicle frame and suspension and parts of steering system have been built with UG software and virtual prototyping technology. The ATV model was assembled in the assembly environment UG, and the various parameters of flexible constraints were determined. The UG model was put into ADAMS / View with interface program of ADAMS software and UG software. The physical prototype was built in virtual environment and all the models were constrained with corresponding constraints at the connection point and the corresponding constraints parameters were set up. The model's basic kinematic relations fit with the actual situation by preliminary experimental analysis. The module parameters of tire were modified and the road was loaded after build in ADAMS/View environment. The dynamic model for the structure was built after whole constraint set.In this paper, different simulation analyses of the model have been conducted with different roads and power forms, including the accelerating performance at start-up and economical speed driving under the good road conditions, trafficability characteristic of snow and ice road and the simulation of climbing capacity. Power performances of front wheel-drive and rear wheel-drive were compared. First gear of gear-box has been parameterization design to improve climbing ability. The simulation results show that the climbing ability can be increased from 30% to 60% after parameterization design of ATV.Simulation and optimization for ride comfort have also been studied and the results show that the three axial total weighted root-mean square acceleration of the model decrease near 16%, which can improve vehicle ride comfort, handling stability and driving safety.