Surface Analysis - *12​.1​.SP3*

Description

Functions have been added to Space Management and to Surface Manager to analyse the hydrostatic parameters of a surface or to do tank capacity analysis on a compartment arrangement. The added functions are not complete and not intended for productive use but are available for evaluation and to give comments for further development. For this reason, all documentation is currently only within this release note. In final versions, it will be part of all official documentation.

Surface analysis

Surface analysis can be used on surfaces that are closed or can be closed by a plane. The analysis will calculate physical properties of closed volumes to use for the stability analysis.

There are two analyses available, hydrostatic parameters and tank capacities.

Hydrostatic parameters

Given a surface and drafts, hydrostatic properties can be obtained for the surface.

• Displacement

• Centre of buoyancy

• Centre of floatation

• Midship area

• Water plane area

• Block, midship, prismatic and water plane area coefficients

This analysis is available both in Surface Manager and Space Management.

Space Management

The calculation of hydrostatic parameters is activated by using the Space Management function Calc Hydrostatic Parameters. When activating, the dialogue below is presented to the user:

Select a surface or envelope and enter one or more drafts separated by commas. The calculation is made on a closed volume. If a non-closed surface is selected, then the function tries to close the surface using the given drafts.

The result of the calculation is presented as a table in the current drawing. An example of such table is shown below:

Surface Manager

To activate this function in Surface Manager, right click on the surface in the tree browser and select Calculate Hydrostatics in the menu. The dialogue below is presented, where the ship particulars and the draft of the ship must be given. The analysis is activated by pressing the Calculate button. The result from the calculation is presented in the output window.

Tank Capacities

Given a space arrangement this function will reply with tables of tanks grouped on purpose, the tables are displayed on the current drawing. The following information are displayed, in the table head the purpose is shown and for each tank the following properties are shown,

• Id

• Start/End frame for the tank

• Volume

• Weight full

• Centre of tank, LCG/TCG/VCG

• Density of the tank content

This calculation is available in Space Management on arrangements of type Compartment.

Space Management

The calculation of Tank Capacities is activated by using the Space Management function Tank Capacities. When activating, the dialog below is presented to the user:

Select a Space world and compartment arrangement. The tank report will be added to the current drawing with calculated properties presented in tables. An example of such tables is shown below:

Benefits

Analysis tools available to provide analysis where needed will shorten design time.

Compatibility Constraints

None

For more information

Only noted here.

Affected Programs

AVEVA Space Management, AVEVA Surface Manager