The Aqwa .SFM (Splitting Force Mass) file is used in the splitting forces calculation utility within the AGS. The file should have the same name as the .RES file, prefixed by AL; for example, ALTEST.SFM, where there exists ALTEST.RES, ALTEST.USS, etc. files.

The file is a user input (ASCII - plain text) of a number of point masses defining the mass distribution of the vessel.

The format of the ASCII .SFM file is a .CSV (comma separated variables) file with the following format.

TITLE Example Data File
STRUCTURE,1
User Code, Mass, X, Y, Z, Ixx, Ixy, Ixz, Iyy, Iyz, Izz

  Repeated as necessary

END

where:

User Code: Used for reference to each record for data errors

Mass: Value of the point mass

X, Y, Z: Position of the point mass

Ixx, etc.: 6 optional inertias for the point mass

Also see the bubble help in the AGS for more details.