MOSES |
 
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MOSES |
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The conventions used in Moses are as follows:
•The definition of wave heading is transformed such that a 0 degree heading, which is incident on the stern in the MOSES format, is incident on the bow in the Flexcom format.
•Positive wave incidence is converted from MOSES format of clockwise in plan to Flexcom format of anti-clockwise in plan.
•The order of translational RAOs must be changed from MOSES format (Surge, Sway, Heave) to Flexcom format (Heave, Surge, Sway).
•The order of rotational RAOs must be changed from the MOSES format (Roll, Pitch, Yaw) to Flexcom format (Yaw, Roll, Pitch)
•Positive surge is converted from the MOSES format of Aft to the Flexcom format of Forward.
•Positive sway is converted from the MOSES format of Starboard to the Flexcom format of Port.
•Positive roll is converted from the MOSES format of Port Down to the Flexcom format of Port Up.
•Positive pitch is converted from the MOSES format of Bow Up to the Flexcom format of Bow Down.
•The reference units of the rotational RAOs (i.e. whether the angle is specified per metre or per foot) may be adjusted if the MOSES units differ from the Flexcom units. Typically the MOSES units are ascertained automatically from the external file, but as this is not always possible, you are advised to explicitly state the unit system (along with the file name) in order to avoid any possible ambiguity.
•The positive phase angle must be converted from the MOSES format of leading to the Flexcom format of lagging.
Further information may be found in the MOSES Conventions and Coordinates section of the Bentley Systems website.