Plane Plates

The mass and the center of gravity for plane plates are calculated as follows.

If the panel has been split after the last generation or updating date, the plate object is read from the data bank. This object contains the cutouts and notches.

For an existing plate object, the area and moments of the outer contour are calculated in the panel plane, and these results are subtracted by the corresponding results for inner contours (= holes). The mass center of the plate is obtained by dividing the moments by the area.

The weight of the plate is the area multiplied by the thickness and the steel density. The steel density is fetched from the quality control file.

The mass center is moved from the moulded plane of the panel to the center of the plate thickness. Then it is transformed into the ship coordinate system and the dimensions are transformed into mm and kg.