STUDY OF THE CONTACT PRESSURE ON FIT DEVIATION IN AN INTERFERENCE FIT JOINT

Abstract

This work investigates the influence of dimensional deviations of pressed hollow two-layer coils on the contact pressure. Two possible calculation schemes are presented. Calculations were performed using the finite element method. It was determined how the contact pressure depends on the deviations, the outer diameter of the pressed joint, the thicknesses of the layers and the "arrangement" of the materials in the joint, i.e. whether the inner or outer layer is more rigid. It was found that when the bias is about 1 percent. of the outer diameter of the joint, or about 10 percent. of the total wall thickness of the joint, the contact pressure, when changing the deviations, can change by more than 10 percent.