2.4    Mass calculation

Now that the whole ship itself is in place, you are ready for some analysis functionality.

In entity Mass calculation, In Entity “Mass calculation” the mass and the centre of gravity of the whole system will be calculated. These values will depend on the mass and centre of gravity of both light ship weight and cargo objects. The total mass is calculated by the summation of all mass components (Entitiesentities) one level below Entity “entity Mass calculation”. The centre of gravity of a system of components is defined as the average of their positions, weighted by their masses.

First include the Entities:

• Include entities Light Ship Weight

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• and Mass Cargoes

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• as children of Mass calculation. Both are singular obligatory entities.
• Create the following parameters in

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• the Knowledge Browser:

• Include the following parameters in Entity “following parameters in entity Mass calculation“: “Mass”, “COGX”, “COGY”, “COGZ”, “MOMX”, “MOMY”, “MOMZ“ and QEntityRef” and “QEntityData”.
• Create the following

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• relations in the Knowledge Browser and connect them to the pertaining parameters in

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• entity Mass calculation

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• .

Please note, that we create normal relations and connect these to the parameters in the Entity because we know that we are going to use these relations in several Mass Entities.

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