Calculations are carried out to document compliance with the voluntary class notations CSA-FLS and CSA-2. These Class Notations require direct assessment of loads and response, including full stochastic fatigue analysis (CSA-FLS and CSA-2) and non-linear load calculations for strength assessment (CSA-2).

Purpose

The purpose of the calculations is verify the increased fatigue and ultimate strength according to the requirements of CSA-FLS and CSA-2, and is particularly relevant for vessels

• with novel design

• with increased size

• operating in harsh environment

• with operational challenges, or

• with strict off-hire requirements.

Benefits

DNV has high competence and wide experience with the Class Notations CSA-FLS and CSA-2, as well as the documentation requirements from Class. We provide high-level expertise on hydrodynamic analysis, fatigue calculations and strength assessment, having both specialised and multidisciplinary competent personnel. We use well-proven numerical software, including integrated solutions for interaction between the hydrodynamic tools and the structural analysis.

Features

• Wave load analysis, including effect of forward speed
• Full-stochastic fatigue analysis
• Non-linear wave load analysis
• Global FE analysis using SESAM
• ULS assessment for buckling strength and yield check