The Stabilization Research Of Fork-type AGV Based On Virtual Prototyping Technology And Structure Optimization

As the development of the manufacturing industry upgrade,industry 4.0 and the digital factory will not still stay at the stage of fresh concept.As an important part of supply chain,AGV can enhance the competitiveness of enterproses greatly.Fork-type AGV of high lifting could use the space more fully and save the cost.Based on Virtual Prototyping Technology,this paper studied on the stability of Fork-type AGV of high lifting,optimized the design of AGV body,analyzed the modal in the virtual environment,and predicted the possiblethe dangerous working conditions in order to ensure product quality and AGV safe and stable.Fork-type AGV of high lifting could use the space more fully.But high lifting is also accompanied by high risk.In the work environment of AGV,there will be this phenomenon of pavement roughness unavoidably.Using ADAMS to estabilish virtual prototype and based on these requirements for environmental adaptability in the GB/T20721-2006(general specifications of AGV),let AGV pass the 5mm step road and 8mm ditch road at the rated speed and load,for analyzing the impact on the stability of AGV,to predict the dangerous state in order to guarantee the safe operation.The contrast test was made after the AGV manufacturing, in order to test the simulation results accurate.Let AGV pass the 30 mm ditch road to record the vertical displacement of the tip of fork.In the simulation environment set the same pavement to compare.Through the contrast experiment the simulation results of maximum deviation is 15.6%, and the simulation result is more accurate and can predict dangerous situation better.Applied with workbench,paper checked strength and stiffness of AGV body,and the maximum stress and maximum deformation is less than the allowable stress and allowable amount of deformation.Optimized the three main force structure, bottom plate,vertical plate and panel plate.In this context of the requirements of strength and deformation, the body weight decreased by 9.8%.Saved material, and improved the dynamic performance of AGV.Applied with workbench modal analysis module to carry out the modal analysis of AGV body, and extracted the first six order natural frequency. Then calculated the pavement roughness excitation frequency and excitation frequency of driving motor according to the rated speed of AGV, and compared with the natural frequency, and concluded that the two kinds of incentive will not cause resonance, and provided the basis for the design of the AGV body.