مسلم نامجو

In designing shrink fit connections, the parts which have to be assembled are usually exposed to thermomechanical loads. The mode and time duration of heat transfer have a significant effect on stresses created in the parts and joint ability to withstand against external loads. Therefore, planning a set of appropriate thermal and structural procedures has significant role in optimum design of junctions. Despite of the fact, few researches have been done on shrink fit operation and design and just radial interface is considered as the main parameter in previous works. In this study, shrink fits are studied in two main processes: first heating and mounting process and then backing to the ambient condition. A 3D coupled thermal and structural simulation based on FEM is done on each process through well-known Solidworks Simulation. To evaluate the accuracy, exact analytical solution of two steel rings shrink fit is compared with the approach outcomes. Results of validated method are used for choosing the most optimum sub processes of shrink fit fabrication.