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.
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:
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:
Our service is facilitated by:
- Model testing in the Seakeeping & Manoeuvring Basin using segmented models that allow, among others, for measurement of sectional forces
- Numerical calculations using hydro-dynamic software like DIFFRAC that calculates hydro-dynamic loading
- Direct fatigue calculations using STRUC software utilizing 3D Finite Element Analysis coupled with 3D hydro-dynamic software (PRECAL)
- Hull Monitoring Systems
- On board advisory systems as Octopus-Monitas
- Install and operate passive fatigue lifetime consumption sensors (Fatigue Damage Sensors - FDS, developed by Kawasaki)
Experience record
The list below gives a review of relevant projects carried out by MARIN:
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)
(complete overview of papers can be found under Publications)
Overview of the Monitas JIP
L’Hostis, D., Kaminski M. and Aalberts, P., Offshore Technology Conference, Houston, Texas, USA, 2010
Wave Measurements for the Monitas System
Hanson, J., Lübben, A., Aalberts, P. and Kaminski M., Offshore Technology Conference, Houston, Texas, USA 2010, 2010
The Monitas System for the Glas Dowr FPSO
Aalberts, P., Cammen J. van der, Kaminski, M. , Offshore Technology Conference, Houston, Texas, USA 2010, 2010
Implementation of the Monitas system for FPSO units
Kaminski M. and Aalberts, P., Offshore Technology Conference, Houston, Texas, USA 2010, 2010
Application of Fatigue Damage Sensors in the Monitas System
Vargas, P., Aalberts, P. and Kaminski M., Offshore Technology Conference, Houston, Texas, USA 2010, 2010
L’Hostis, D., Kaminski M. and Aalberts, P., Offshore Technology Conference, Houston, Texas, USA, 2010
Wave Measurements for the Monitas System
Hanson, J., Lübben, A., Aalberts, P. and Kaminski M., Offshore Technology Conference, Houston, Texas, USA 2010, 2010
The Monitas System for the Glas Dowr FPSO
Aalberts, P., Cammen J. van der, Kaminski, M. , Offshore Technology Conference, Houston, Texas, USA 2010, 2010
Implementation of the Monitas system for FPSO units
Kaminski M. and Aalberts, P., Offshore Technology Conference, Houston, Texas, USA 2010, 2010
Application of Fatigue Damage Sensors in the Monitas System
Vargas, P., Aalberts, P. and Kaminski M., Offshore Technology Conference, Houston, Texas, USA 2010, 2010
Most recent articles on fatigue written for MARIN Report
(complete overview of articles can be found under Publications)
(complete overview of articles can be found under Publications)
Managing fatigue in riser systems
Pieter Aalberts, MARIN Report, 2011
Fatigue Lifetime Assurance with Monitas
Mirek Kaminski, MARIN report, 2010
DCV Balder instrumented for lifetime extension
Pieter Aalberts, MARIN report, 2010
Lifetime prediction moves a step closer with fatigue damage sensors
Ingo Drummen, MARIN report, 2009
Tombua Landana transports undergo fatigue assessment
Pieter Aalberts, MARIN Report, 2009
Pieter Aalberts, MARIN Report, 2011
Fatigue Lifetime Assurance with Monitas
Mirek Kaminski, MARIN report, 2010
DCV Balder instrumented for lifetime extension
Pieter Aalberts, MARIN report, 2010
Lifetime prediction moves a step closer with fatigue damage sensors
Ingo Drummen, MARIN report, 2009
Tombua Landana transports undergo fatigue assessment
Pieter Aalberts, MARIN Report, 2009
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
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