1. OrcaFlex OrcaFlex User Group, 2004 www.orcina.com Slide 1 of 5 - Fatigue Analysis Automated Analysis from Multiple Simulation Files Analysis Options: –Regular Waves: range over last wave cycle –Random Seas: Rainflow analysis over specified interval –Spectral Analysis: statistical method for screening purposes Results Exported to Excel Spreadsheet: –Damage Summary highlighting excessive values –Full details of all simulation files and S-N data

2. OrcaFlex OrcaFlex User Group, 2004 www.orcina.com Slide 2 of 5 - Fatigue Analysis Control Parameters Load Cases: –List of simulation files and associated occurrences Stress Components: –Set of stress values to be evaluated and analysed

3. OrcaFlex OrcaFlex User Group, 2004 www.orcina.com Slide 3 of 5 - Fatigue Analysis Line Data Sections to be analysed: –Stress Concentration Factor –S-N Curve S-N Data: –Parameters –Tabular –Units

4. OrcaFlex OrcaFlex User Group, 2004 www.orcina.com Slide 4 of 5 - Fatigue Analysis Run Options Check Batch: –Saving.ftg files On-line: –Saving results

5. OrcaFlex OrcaFlex User Group, 2004 www.orcina.com Slide 5 of 5 - Fatigue Analysis Analysing Complex Structures (Umbilicals) Manufacturer’s Input: –Tension v. Axial Stress Relationship –Curvature v. Bending Stress relationship OrcaFlex Input: Extracted from Static Results: –Stress Diameters –Tensile Load Factor –Bending Load Factor