CREATION AND SUPERVISION OF A STABILITY ERS FILE
CREATION OF THE ERS MODEL
General
The creation of an ERS ship’s model has to meet ERS standards and requirements of accuracy :
The whole ship must be described very precisely, as explained in the document “Class vs ERS.pdf” (Annex 1) showing the explicit difference between Classification and ERS needs.
The documents/plans to be used for the ship’s definition are :
Lines plan (or off-set tables)
General arrangement plan
Capacity plan
Midship section
Profile and decks
Shell expansion
Aft part structure
Engine room structure
Cargo holds structure
Fore part structure
Rudder construction plan
Loading manual and/or trim and stability manual (including longitudinal strength calculation)
Longitudinal distribution of lightship weight
Permissible still-water bending moments and shear forces
Coordinates (X, Y, Z) of all openings (doors, air pipes, ventilators, hatches,...) located on exposed deck with indication of their means of closing (usually shown of Free-Board Plan).
“VeriSTAR Stability”
The specific instructions to create an ERS model in “VeriSTAR Stability” software are given in the attached document “Instructions for the creation of an ERS database on VRS_rev3.pdf” (Annex 2).
SUPERVISION OF THE ERS MODEL
General
All the data to be validated within the scope of the supervision of an ERS database have to be checked and compared with the data provided on the reference documents which where used for the creation of the database (listed in SECTION 1).
The ERS service will remain inactive until the database is supervised and validated.
“VeriSTAR Stability”
The data to be validated within the scope of the supervision of an ERS model created in “VeriSTAR Stability” software has to :
Meet the requirements given in the attached document “Instructions for the creation of an ERS database on VRS_rev3.pdf” (Annex 2).
Be checked as described in the attached document “Instructions for the supervision of an ERS database on VRS_rev0.pdf” (Annex 3).