Structural Design and Analysis

Analysis for fulfilling

Stability design criteria:

  • Capsizing
  • Resonance
  • Ringing
  • Springing

Structural design criteria:

  • Ultimate strength
  • Fatigue
  • Accidental collapse
  • Riser buckling
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Methods for determining loads

Loads

  • Functional loads (permanent loads, payloads, hydrostatic pressure, tank pressure)
  • Hydrodynamic loads
  • Accidental loads, such as explosions and fires, ship impacts, etc.

Methods

  • Morison’s equation (for calculating loads on slender structures)
  • Potential theory (for large volume structures)
  • Non-linear calculations
  • Structural response analysis methods for determining
    • Global response (functional and hydrodynamic loads)
    • Local response
    • Response due to accidental loads (briefly)