Research and Development of MFNS Software Based on Software Engineering

The special mold temperature control (MTC) foundry numerical computational software MFNS was developed based on software engineering theory. The researches on mathematical models of MTC foundry process including heat transfer equation and finite element numerical model were done. In software requirement analysis, the system logic model was established by the data flow diagram and data dictionary. On a base of the logic model, the system architecture was build, and ten modules were designed to compute latent, solve equations and implement other corresponding functions. As to MTC units, a computational model and control algorithm were presented. This method in which the MTC units can be automatic controlled is closer to the real process. By comparing computational results with the experimental data, the relative errors are less than 8%. Then the software was validated.