Fatigue
Glas Dowr, courtesy BES Glas Dowr, courtesy BES
General Information
Ships and offshore structures often suffer from fatigue damage. This is caused by the fact that the actual fatigue performance depends on many factors which are uncertain during design.

Service & Activities
MARIN can assist designers and operators of marine structures. Our services and activities focus on determination and control of hydro-dynamic fatigue loading. Our Hydro-Structural Services (HSS) advices also on other factors like vibration induced fatigue.

With respect to fatigue we can:

  • Determine hydro-dynamic fatigue loading which is needed in the design stage. This includes sectional forces, motion induced accelerations and wave pressures.
  • Estimate fatigue lifetime of structural details
  • Advice on fatigue safety factors
  • Design, install and operate Hull Monitoring Systems (HMS) which measure factors influencing fatigue lifetime consumption
  • Design, install and operate Advisory Monitoring Systems (AMS) which control and explain fatigue lifetime consumption
  • Provide decision support towards Inspection, Repair and Maintenance (IRM)
  • Troubleshoot fatigue issues
Facilities & Tools
Our service is facilitated by:

Software Sales
Octopus-Monitas software is available for commercial use

Experience record
The list below gives a review of relevant projects carried out by MARIN:

  • Monitas II JIP, Advisory Monitoring Systems (2011-2014)
  • Balder (HMC) (2009-2014)
  • USAN FPSO (Total) (2009)
  • Monitas JIP (16 companies), Advisory Monitoring Systems (2006-2011)
  • Valid JIP (2007-2013)
  • VOMAS (2008-2011)
  • FPSO Live (Bluewater), Minimal monitoring systems for FPSOs (2003-2006)
  • FPSO Capacity I & II (DNV), Fatigue resistance of FPSOs (1999-2003)
  • FPSO Integrity I & II (MARIN), Fatigue loading on FPSOs (1997-2002)
Most recent papers written on fatigue by MARIN
(complete overview of papers can be found under Publications)

Minimising fatigue damage during FPSO transport
Ingo Drummen, MARIN Report, 2013

Measuring workload and performance during complex manoeuvres, both on a manoeuvring simulator and on board
W. Uitterhoeve, R. de Roos, P. Kluytenaar, P. Valk, D. ten Hove, MARSIM 2012 Singapore, 2012

Live testing of fatigue predictions for USCG
Ingo Drummen, MARIN Report, 2012

Managing fatigue in riser systems
Pieter Aalberts, MARIN Report, 2011

Physiological Measurement Applied in Maritime Simulations: A Newly Developped Method to Measure Workload on Board of Ships
W. Uitterhoeve, M.Croes-Schalken, D. ten Hove, HCI International 2011, Orlando, FL, USA, 2011

Most recent articles on fatigue written for MARIN Report
(complete overview of articles can be found under Publications)

Minimising fatigue damage during FPSO transport
Ingo Drummen, MARIN Report, 2013

Measuring workload and performance during complex manoeuvres, both on a manoeuvring simulator and on board
W. Uitterhoeve, R. de Roos, P. Kluytenaar, P. Valk, D. ten Hove, MARSIM 2012 Singapore, 2012

Live testing of fatigue predictions for USCG
Ingo Drummen, MARIN Report, 2012

Managing fatigue in riser systems
Pieter Aalberts, MARIN Report, 2011

Physiological Measurement Applied in Maritime Simulations: A Newly Developped Method to Measure Workload on Board of Ships
W. Uitterhoeve, M.Croes-Schalken, D. ten Hove, HCI International 2011, Orlando, FL, USA, 2011

Contact
For more information on how MARIN can advise your organisation on fatique related issues, please contact Hydro-Structural Services (HSS), part of the Trials & Monitoring Department
For model tests to assess fatigue loading, contact the knowledge group seakeeping at seakeeping@marin.nl

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