Analysis of Intact and Damaged Stability

In order to perform a stability analysis at a selected deadweight loading condition (created as described in Creation of Loading Condition Data), you must select the Stability - Deterministic Stability icon and ensure that all input data is complete and current. Before this can be done however, certain default values provided on the Data Input dialog may need to be altered, such as the heeling range and increment. Furthermore, if the analysis is to include damage stability, then you are required to define the appropriate damage scenarios beforehand, as described in a following section. you are also able to specify on the Input dialog, which particular pre-established deadweight loading condition is to be associated with and the selected damage scenarios that are to be evaluated. The combination of a damage scenario, applied to a deadweight loading condition, produces a damaged condition.

The intact and damaged results include a summary of the damage condition, hydrostatics at equilibrium, the GZ curve in tabular and graphical format and a list of the all openings and deck edge points giving their angle of immersion and distance to the waterline at equilibrium. In both cases the vessel will be balanced assuming that it is free to trim and heel.

Also from the Loading Calculations dialog, a critical KG analysis can be carried out for chosen conditions. Before this can be done however, you will have had to select the appropriate stability criteria from the Options dialog (Stability tab) and possibly will have also supplied details of the deck edge geometry, side profile, and both protected and unprotected openings, all from the Other Definitions dialog.