Failure of two overhead crane shafts (CROSBI ID 282757)
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Podaci o odgovornosti
Domazet, Željko ; Lukša, Francisko ; Bugarin, Miro
engleski
Failure of two overhead crane shafts
The failure analysis of two overhead crane shafts is presented: the failure of an overhead crane drive shaft and the failure of an overhead crane gearbox shaft, due to rotating-bending fatigue. The fracture of the overhead crane drive shaft originated in small radius fillet between two different diameters of the shaft. A new shaft was made with a larger-size fillet, resulting in reduced stress concentration in this region. The failure of the overhead crane gearbox shaft originated at the intersection of two stress raisers, at the change in shaft diameter and in the keyway corner. A new shaft was made with a larger- size fillet and a larger size radius of the keyways corner to minimize stress concentration in this section. In both cases the installed couplings were replaced by gear couplings in order to allow parallel and angular misalignment as well as to avoid additional load due to misalignment. The analysis shows that the fatigue life can be significantly increased with a simple change in the structural details
Failure analysis ; Shaft failures ; Overhead cranes
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Podaci o izdanju
Vol. 15 (1)
2020.
14-20
objavljeno
1331-7210