Research On Remote Welding Numerical Simulation System

With the development of science and technology, the application of internet technology got more and more attentions. Remote Welding Numerical Simulation System applied the technology of computer internet and computer intelligence to the welding numerical simulation, eliminated the limit on space and knowledge, reached the maximum using of the existed resources in an enterprise, and cut down the requirement for FEM knowledge of users. It is of important meaning for the application and development of welding numerical simulation.This paper researched the structure of the system roundly, and outlined the three-layer structure of the application layer, the session layer and the execution layer in logic, besides that, the paper planned the physical structure of the faced data module, the background data module and the FEM solution module. Also, the 2D FEM analyzing model of the typical joint and its geometry model, boundary conditions, initial conditions and material properties were studied. Based on above, the parameter modeling method was brought forward, which transfers the real data to FEM modal with mapping, and provides a mathematic basis for computer's analyzing intelligently of welding process.With the results of above researches, this paper developed the Remote Welding Numerical Simulation System by using the technology of database, EJB, JDBC, and DBI. The system has the capabilities of dealing with the real welding data intelligently, getting the distributing charts of the residual stress and strain automatically. In order to perfect the capability of extending, the criterions of coding template and extending were both studied.To verify the practicability and validity of the system, this paper analyzed the butt joint and the T-joint with the two comparative methods of the Remote Welding Numerical Simulation System and the common FEM. The results showed that, the system has the abilities of intelligence and internet. And, with the reasonable result,the system took fewer times and required less special knowledge of FEM.The researches on the internet and parameter modeling method in this paper for the numerical simulation of welding realized the remote and the intelligence in the fields of welding numerical simulation. These innovational researches are important and valuable for the applications of the numerical simulation of the welding process in manufacturing fields.