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The inplace analyses are intended to assess the adequacy of units for all anticipated loading conditions once the unit is in place for its expected functions and operations. Offshore units can experience a combination of complex loadings from dynamic offshore environment in operating and survival conditions including wind, wave, currents, seismic activities, service loads, ship impact, accidental loads etc. and all applicable conditions are considered in the inplace analyses.
The preservice analyses are intended to assess the adequacy of units for all anticipated loading conditions prior the unit is in place for its expected function and operations. Various pre-service conditions we analyze includes Lifting, Land transportation, Loadout, Ballasting, Sea-fastening, Sea-transportation, Launching, Upending, Float-over, Mating, On-bottom Stability, Installation, Pile Drivability etc. based on the type of unit and applicability.
An offshore installation is exposed throughout its life to environmental loading which causes cyclic stress variations in its structural members resulting in the possibility of fatigue cracking in these members. Fatigue analysis is carried out as a part of new designs for finding out design life and also in life extension projects to find out the expended life and remaining life. Fatigue analysis is typically carried out for various types of structures like offshore jackets, hulls of floating units, crane foundations, foundations for vibrating equipment, mooring systems etc. susceptible to cyclic loadings under wave actions or operating cyclic loads.
In-place analysis at Aries Energy assesses an offshore unit's adequacy against all anticipated loading conditions once it's in place for its expected function, including wind, wave, currents, seismic activity, service loads, ship impact, and accidental loads. Both operating and survival conditions are considered, reflecting the combination of complex loadings an offshore structure can experience in service.
Preservice analysis assesses an offshore unit's adequacy for all anticipated loading conditions before it's in place for its expected function and operations. Depending on the unit type, this can include lifting, land transportation, loadout, ballasting, sea-fastening, sea-transportation, launching, upending, float-over, mating, on-bottom stability, installation, and pile drivability.
Both. Aries Energy carries out fatigue analysis as part of new designs to establish design life, and also in life extension projects to determine the expended life and remaining life of an asset already in service. This means the same fatigue methodology supports a structure from initial design through to an aging-asset reassessment.
Fatigue analysis is typically carried out for structures susceptible to cyclic loading, including offshore jackets, hulls of floating units, crane foundations, foundations for vibrating equipment, and mooring systems. These components experience cyclic stress variations from wave actions or operating cyclic loads, which can lead to fatigue cracking over time if not properly assessed.
