Research on Test Method of Self-Propelled Agricultural Machine Based on Virtual Reality

purpose: discuss application of virtual reality in self-propelled agricultural machine test; Method: analyze current farm environment, establish 3D virtual scenario of a farm, construct a virtual reality system combining physical engine, mechanical kinematics and dynamics, and simulate whole performance of the self-propelled machine based on virtual reality; Result: the agricultural mechanical system based on virtual reality can accurately capture the realistic road conditions and accurately fit the navigation routes. The climbing and line brake test simulation results of the selfpropelled agricultural machine indicate that the whole traction, speed and vertical shift comply with the actual conditions and validate relation between the speed and shift. Conclusion: the agricultural machine design based on virtual reality is valuable for research on the agricultural modernization, which can reduce design cycle of the agricultural machine, lower design cost of agricultural machines, and improve mechanical performance, so it should be emphasized in industrial production.