MODEL GALLERY

Optimization of a Spinning Gear

One way to fasten a gear to a shaft is by thermal interference. The gear is thermally expanded and slid onto the an oversized shaft. As the temperature drops, a contact bond between the two components is reached.

Such an assembly operates safely in many situations. However, spinning the assembly at high rates can lead to seperation.

This analysis determines the critical spinning frequency at which the gear and shaft separate. The model is solved using COMSOL Multiphysics while the critical frequncy is found using the Optimization Lab.


The stresses and deformation of a gear at 1600 Hz (left), and convergence of the separation frequency during optimizing the process.


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