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| Ship
Structural Design of FPSO and FSO Vessels |
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| Viking
Systems – a leading provider of structural design services - provides
its clients with timely solutions using advanced analysis design tools and
classification society requirements for ships and floating marine
structures. Viking Systems has applied its extensive knowledge of
structural design of ships to the development of SAGA, its proprietary
structural engineering software. |
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Conversion Design and
Classification:
Viking Systems performs analysis
work related to conversion of single-skin tankers to FSO/FPSO Vessel. We perform analysis of structural finite element models of
the entire vessel with the purpose of accurately verifying the proposed
scantlings and to propose modifications to obtain a
cost/schedule-effective design. We
perform structural evaluation and verification to the rules of all major
classification societies. |
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Loading Analysis:
Viking
Systems software loads the vessel with required load components including
wave loading, dynamic pressures, vessel accelerations, and tank loading. |
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Stress Result Assessment:
Viking Systems’ SAGA software is
used to evaluate the structure of the vessel against classical yielding
and buckling rules. The view
on the right shows a bulkhead evaluated for a number of rules and a number
of load cases. |
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Fatigue Analysis of Ship Structures
Viking Systems has implemented a methodology for fatigue evaluation
of structural details. The
method is based on long-term distribution of hull girder wave loading to
produce a statistical stress spectrum via probability density functions. The system can also analyze a number of load cases
resulting from a motion analysis. The
results are presented as a stress damage ratio for each detail.
The damage ratio results are processed to give a visual
understanding: |
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