Research On Virtual Prototype Modeling And Dynamic Property For Multi-body System Of Gangsaw

Gangsaw is the main equipment for manufacturing big granite plates. The market demand of stone product is in a wide space as China is in a large-scale construction period recently. As the rapid growth of the modern stone industry, the properties of the equipment need more stringent requirements.The equipment with a good dynamic characteristic has become one of emphases and difficulties in the entire research and development.According to the technical route and characteristics of the virtual prototype technology research work,optimizing the dynamic characteristics of the gangsaw as the goal, system analysis the modeling, simulation of the gangsaw virtual prototype.Modular technology was used to plan the equipment scheme.Established the gangsaw virtual prototype using the ADAMS(Automatic Dynamic Analysis of Mechanical System).Established the main transmission system of gangsaw. Kinematics and dynamics theory analysis is carried on for the main transmission system.Through the simulation analysis of gangsaw, the interference of the main transmission system components not occurs when the components have reached the track.Using ADAMS parameterization analysis function conduct the parametric analysis of the main transmission system. Through the design study and the design of experiment (DOE), the length of connecting-rod and the speed of crank is the key parameters influence the stress of connecting-rod; After optimization, connecting-rod forces from 1.85033 X 105N reduced to 1.41486 X 105N, stress condition improved obviously.With the main transmission system's main component——connecting-rod as the research object, analysis its four regulating mode.Based on the Virtual Prototype Technology, Flexible Body Theory and the Modal Analysis Technology, and combined with Solid Works and the finite element analysis software ANSYS and the multi-rigid dynamic software ADAMS, a dynamic analysis of rigid-flexible connecting-rod system is conducted, the dynamic stress of the connecting-rod in the working cycle is obtained, and fatigue analysis is done for the largest stress area of the connecting-rod, the connecting-rod satisfy the required intensity. Connecting——rod can withstand alternating load circulation 107 times without fatigue. After optimization design, the processing efficiency of the granite gangsaw was improved, and its overall structure is more reasonable with a high performance-price ratio.It meets consumer s demand and improves the market competitiveness of equipment well.This makes the advantage of sawing large format plates with gangsaw embodied fully,and it has higher economic benefits and broad market prospecets.