This paper presents the results of two failure investigations carried out by DNV Maritime Technical Advisory. The first case is the failure of an oil distribution shaft in the main propulsions shafting for on oil tanker. The second case is the fracture on a high speed intermediate shaft on a platform supply vessel.

Keywords:
subsea system, upstream oil & gas, marine transportation, od shaft, fatigue failure, shaft bearing, calculation, intermediate shaft, speed range, fatigue strength
Subjects:
Offshore Facilities and Subsea Systems, Information Management and Systems
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Copyright 2012, The Society of Naval Architects and Marine Engineers
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