Shrink fits are low-price connections which are widely used in industry and industrial
connections. In designing shrink fits it is important to consider radial interface for
optimized performance and also to choose an accurate method of fabrication and assembling.
Parts which have to be assembled are usually exposed to thermo-mechanical loads. Mode and
time duration of heat transfer have a significant effect on required hydraulic force,
stress time rate of creation in parts and joint ability to withstand against external
loads. Therefore, planning a set of appropriate thermal and structural procedures has
significant role in reducing energy consumption, optimized performance and promoting the
speed of parts assembly. Despite of the fact, few researches have been done on shrink fit
operation and design, rather than dimensional design. 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 Premium. 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.