Affiliation:
1. Siemens Gas and Power GmbH & Co. KG; Gasturbinenwerk Berlin , Werkstoffprüflabor, Huttenstraße 12 , 10548 Berlin; e-mail:
Abstract
Abstract
Swivel arms in a turning gear application failed in service due to fatigue cracking. 2 out of 52 components were affected. Turning gears are mainly used to spin heavy-duty gas turbine engines rotors after shut-down to prevent distortion of the still-hot rotor. The design of the swivel arms, that was not robust enough to tolerate deviations in fabrication, was identified as the root cause of the failures.
Subject
Metals and Alloys,Mechanics of Materials,Condensed Matter Physics,Electronic, Optical and Magnetic Materials