#### Vol. 13, No. 3, 2018

 Recent Issues
 The Journal About the Journal Editorial Board Subscriptions Scientific Advantage Submission Guidelines Submission Form Ethics Statement ISSN: 1559-3959 Author Index To Appear Other MSP Journals

### Enrico Bertocchi, Luca Lanzoni, Sara Mantovani, Enrico Radi and Antonio Strozzi

Vol. 13 (2018), No. 3, 283–296
##### Abstract

A shaft-hub press fit subjected to two non-axisymmetric loading conditions is examined and the situation of incipient detachment between the shaft and the hub is determined. The first condition consists of a central radial load $P$ applied to the hub, balanced by two lateral forces $P∕2$ applied to the shaft at a distance $d$ from the hub lateral walls. In the second condition, a central couple $C$ is applied to the hub, and it is balanced by two lateral opposite loads withstood by the shaft at a distance $d$ from the hub lateral walls. The shaft-hub contact is modelled in terms of two elastic Timoshenko beams connected by distributed elastic springs (Winkler foundation), whose constant is analytically evaluated. Based upon this enhanced beam-like modelling, the loading inducing an undesired shaft-hub incipient detachment is theoretically determined in terms of the shaft-hub geometry, of the initial shaft-hub interference, and of the elastic constants. Finite element forecasts are presented to quantify the error of this beam-like approximate analytical approach.

##### Keywords
press fit, incipient detachment, analytical solution, Winkler foundation, finite elements