This operating case is analyzed using Orcaflex programs.

Interfacing all the input data and program commands, the following are generated by “MOSES”: Wind areas and underwater hull/columns/bracing areas are calculated using vessel’s various General Arrangement drawings and area values are used as input into “MOSES” programs to calculate the corresponding forces.Hull input offsets generated using the vessel’s various Scantling Plans to capture the columns, bracing and underwater hull forms.Using available vessel documents, the following basic input data are generated for the MOSES program: “MOSES” has been utilized to generate vessel hydrostatics, ballasting and stability of a vessel and cargo and generation of standard seakeeping results in irregular Seas. The program accepts a description of a model (vessel) to perform either static, frequency domain or time domain simulations. MOSES” is an integrated ocean simulation and analysis program for analyzing the ocean performance of systems of bodies. Orcaflex is a marine dynamics program developed by Orcina for static and dynamic analysis of a wide range of offshore systems, including all types of marine risers (rigid and flexible), global analysis, moorings, installation and towed systems. The whole mooring analysis is performed using Moses and Orcaflex 9.2.

The mooring analysis focuses on the structural adequacy of the mooring lines, anchor uplift and anchor holding power. This report assesses the behaviour of the Vessel mooring system under extreme weather conditions in the field of interest, along with typical operating conditions. This analysis is performed to be used for a study of Vessel into a safe mooring system on the Offshore site.

Orcaflex software