Kinematic Analysis Of Spindle Coupled Road Simulator

As major test equipment for automotive durability testing, spindle coupled roadsimulation test bench is widely used in new car development and durability andreliability testing of key components in vehicle. In this paper, use HIT research projectwhich named " spindle coupled road simulation test system" as the background,mechanical structure and the kinematic theory of spindle coupled road simulation testsystem was analyzed, which is the foundation of the next develop Axis coupled roadsimulator test fixture.First, on the basis of the similar foreign equipments, completed the mechanicalstructure’s preliminary design of the shaft coupled road simulation test bench,using3Dmodeling software, created three-dimensional solid model of the test bench. Analyzedhinge manner and composition of test bench’s mechanical components. The shaftcoupled road simulation test bench’s structure is complicated, analyzed test bench’sstructural characteristics, made detailed analysis of the the working principle and theway to achieve degree of freedom.Then,made Kinematic analysis of shaft coupled road simulation test bench, toestablish the coordinate system describing the test bench every component’s state ofmotion, and deduced the coordinate transformation matrix. The test bnech’s structure iscomplicated, on the basis of the degree of freedom independent of each other,studied theshaft coupled road simulation test bench’s kinematics and inverse solution. The loadingrod systerm is a series connecting mechanism containing two arms cranks, the equationof the inverse solution is a nonlinear equation involving trigonometric functions,thepaper using the Newton-Raphson iteration method, obtained the value of loading rodsysterm series connecting mechanism, and then obtained the inverse solution of the testbench.Finally, imported shaft coupled road simulation test bench’s three-dimensional solidmodel into ADAMS, established a virtual prototype model. Using the model, madesimulation verification of the previous section’s theoretical analysis. Simulation resultsshows that the shaft coupled road simulation test bench’s ingenious structure allow lessmovement coupling among different degrees of freedom.