Investigation of diesel generator shaft and bearing failures

I.A. Craighead, T.G.F. Gray

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A shaft failure in a 634 kW diesel generator after 4000 hours of operation required investigation, especially when similar sets began to show signs of excessive bearing housing wear. The failure was found to be due to torsional fatigue caused by operation at an unforeseen resonant condition. The damage to the bearing housing of this type of set was also attributed to this behaviour. Replacement of the bearings and housings and redesign of the flexible coupling has been undertaken to prevent further failures. Modifications to design procedures are now being adopted to ensure similar problems do not occur in other existing or new machines.
LanguageEnglish
Pages153-158
Number of pages5
JournalProceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics
Volume218
Issue number3
DOIs
Publication statusPublished - 1 Sep 2004

Fingerprint

Bearings (structural)
generators
Flexible couplings
Wear of materials
Fatigue of materials
damage

Keywords

  • diesel generator
  • torsional fatigue
  • resonance
  • flexible couplings
  • mechanical engineering

Cite this

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title = "Investigation of diesel generator shaft and bearing failures",
abstract = "A shaft failure in a 634 kW diesel generator after 4000 hours of operation required investigation, especially when similar sets began to show signs of excessive bearing housing wear. The failure was found to be due to torsional fatigue caused by operation at an unforeseen resonant condition. The damage to the bearing housing of this type of set was also attributed to this behaviour. Replacement of the bearings and housings and redesign of the flexible coupling has been undertaken to prevent further failures. Modifications to design procedures are now being adopted to ensure similar problems do not occur in other existing or new machines.",
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Investigation of diesel generator shaft and bearing failures. / Craighead, I.A.; Gray, T.G.F.

In: Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics , Vol. 218, No. 3, 01.09.2004, p. 153-158.

Research output: Contribution to journalArticle

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AU - Craighead, I.A.

AU - Gray, T.G.F.

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AB - A shaft failure in a 634 kW diesel generator after 4000 hours of operation required investigation, especially when similar sets began to show signs of excessive bearing housing wear. The failure was found to be due to torsional fatigue caused by operation at an unforeseen resonant condition. The damage to the bearing housing of this type of set was also attributed to this behaviour. Replacement of the bearings and housings and redesign of the flexible coupling has been undertaken to prevent further failures. Modifications to design procedures are now being adopted to ensure similar problems do not occur in other existing or new machines.

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KW - torsional fatigue

KW - resonance

KW - flexible couplings

KW - mechanical engineering

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JO - Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics

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