Mechanical Design And Dynamics Simulation Of The Mobility System Of Lunar Rover Vehicle

Manned lunar rover vehicle is of significant implication in expanding the lunar exploration rangeas well as improving the exploration capability and efficiency. Its reaserch and development is vital toChina’s lunar exploration project.In this thesis, the3D virtual prototype model of the vehicle’s mobility subsystem is build in Pro/esoftware through combining China’s lunar exploration task and requirements with reserchments andcomparision of lunar rover systems abroad. Furthermore, the kinematics model analyzing andoptimizing together with dynamics simulation of the suspension subsystem are accomplished. Relatedwork detailed as follows:Firstly, the space linkage mechanism of the suspension subsystem is extracted from the prototypemodel build in Pro/e, and through using the space mechanisms theory, the math model of thesuspension system is established based on which the mobility performance of the system isanalyzed.The splitting point position of the system is optimized according to the relationship ofposition math function、constriant conditions and the objective function in Matlab. Finally, theprototype model is imported to the multi_rigid dynamics simulation software ADAMS, and throughthe dynamics simulation with four kind of typical working condition, the mobility performance of thesystem is evaluated. The simulation result shows that the designed lunar rover vehicle is competentwith the lunar exploration task. The analysis and simulation in this thesis can be effective referencesto guide China’s lunar rover vehicle design.