Design And Analysis On The Six-freedom Degrees Driving Simulation Motion Device

With the development of science and technology in recent years,people have paid more and more attention to and demanded for motion simulators with multiple degrees of freedom.For example,Application of motion simulator in driving school training students,and in the field of racing games.At present,most of the simulator’s structure is based on Stewart mechanism.Due to the characteristics of its layout,there is still some room for improvement of this type of mechanism.This article designs a motion simulator applied to the car driving scene.The structure is a 6-UPS mechanism that is mutated from the Stewart mechanism.It has good decoupling and can be used in modern teaching,entertainment and military field.A six-degree-of-freedom driving simulator with a new layout is designed.The simulator mainly includes a motion platform,a chassis,and six UPS motion branches connecting the motion platform and the chassis.The six branches are divided into two groups,each group of branches presented a circular distribution and distributed on a different circle.In the initial state,each group of adjacent branches are parallel in pairs.The forward and inverse solutions of the mechanism are analyzed,and the working space of the mechanism is solved by the sphere coordinate searching method.Using work space volume and mechanism energy efficiency coefficients as evaluation indicators,and combined with the characteristics of the institutional layout,the influence of the simulator’s mechanism parameters on the evaluation indicators is analyzed,and a set of parameters is optimized.The overall dynamics model of the motion simulator is established,the dynamic formula of the simulator is obtained using Newton Euler’s method,the structure design is carried out and the virtual prototype is established,and the dynamic simulation of the virtual prototype is obtained using ADAMS software,the parameter curve of the device is drawn,the model of MATLAB & ADAMS co-simulation is established,and the co-simulation results show that the designed driving simulator has good dynamic performance.The result shows that the six-degree-of-freedom driving simulator designed in this paper is feasible and meets the design requirements,which provides a theoretical basis for the research and development of this type of products.