Orca Offshore was hired by Zeetech to perform the structural spectral dynamic analysis on several stinger designs. The analysis have been performed with MOSES which combined the vessel motion and the structural analysis of the stinger in one model including API code check.
The structural spectral analysis included several operational, transitional and extreme loadcases.
The analysis involved three stinger designs of the following three vessels:
- SapuraKencana 3500
- SapuraKencana 1200
- Petrofac JSD 6000