In order to investigate the non linear dynamic behaviour of groups of shrouded blades with different contact pressures and with different excitations, a test rig has been designed. The test rig, which accommodates a group of 4 shrouded blades of a low pressure steam turbine, has been accurately analysed by means of linear and non linear finite element analyses, in order to explore different operating conditions that the blades could experience during operation. The main results of this analysis are here presented.

Simulation of the dynamic behaviour of a group of blades with friction contacts

BACHSCHMID, NICOLO'
2012-01-01

Abstract

In order to investigate the non linear dynamic behaviour of groups of shrouded blades with different contact pressures and with different excitations, a test rig has been designed. The test rig, which accommodates a group of 4 shrouded blades of a low pressure steam turbine, has been accurately analysed by means of linear and non linear finite element analyses, in order to explore different operating conditions that the blades could experience during operation. The main results of this analysis are here presented.
2012
Institution of Mechanical Engineers - 10th International Conference on Vibrations in Rotating Machinery
9780857094520
blade vibrations; friction contact; testrig
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/678358
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