Abstract

This work focuses on practical solution to designing interference fit joint. For this, based on a series of analytical expressions, we studied structural effects on performances of shaft-hub interference fit assembly when the interference range remains unchanged. The results suggest that the contact stress gets lower with thinner hub and increasing fit diameter. Furthermore, the hub thickness has little effect on the strength of hub. Thicker hub shows larger contact stiffness while enhancing fit diameter can reduce contact stiffness. Too large radius of rounded edge has little effect on stress concentration of the assembly. The study provides a rapid and effective method of interference connection design for engineering.

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