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Structural Engineering

Finite Element Analysis (FEA)

hull structure FEA model animation

Tridentis engineers have the structural engineering expertise and tools necessary to provide engineering solutions for all phases of structural design. Our experience includes design and analysis of hull girder scantlings using first principles as well as applying classification society rules. Our engineers have direct experience supporting the American Bureau of Shipping (ABS) and are intimately familiar with their requirements and processes in addition to other classification societies. Our approach to designing of ship’s scantlings is an iterative process involving successive calculations, varying potential ship’s geometry to converge on the most efficient, lightest weight structure within the parameters of the overarching requirements document considering overall service life, fatigue, damage tolerance and corrosion.

Structural analysis often involves complicated geometry. This is the case with full ship analysis, anchoring, towing, and machinery foundations or complicated loading scenarios such as wave slap, hull slamming, vibration, and shock. For these cases, Tridentis employs Finite Element Analysis (FEA) and modeling by way of various analysis codes such as NASTRAN and SolidWorks Simulation. Recently Tridentis performed a finite element vibration analysis for ship machinery using a harmonic analysis with sinusoidal input for a fatigue evaluation. Our efforts here helped our customer save money by identifying critical fatigue areas before this equipment was built and tested. Our FEA and Structural Engineering capabilities also include:

  • Linear Static Analysis
  • Buckling Analysis
  • Non-linear Analysis
  • Complex Model Development
  • Vibration Analysis
  • Shock Analysis
  • Dynamic Design Analysis Method (DDAM)