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Hull and Outfitting

Block Preliminary WCOG

  • Last UpdatedDec 14, 2023
  • 2 minute read

Purpose:

To support the user in the definition of the hull production block structure. The function estimates the weight and center of gravity of the steel contents within hull blocks, created by a fictive block division of the hull model. The fictive block division is achieved by dividing the complete hull model by a number of axis-aligned boxes given within a comma-separated input file.

The input file can have the following three different formats:

  1. <Type(D or P)>, <Name> ,<Nom. Aft>,<Nom. Stbd>,<Nom. Bot>,<Nom. For>,<Nom. Port>,<Nom. Top>,<Encl. block>

  2. The full input format as specified in Basic Design->Function Overview->Functions in the Project Menu->Block->Block - Create from CSV

  3. A file with block names, one block name per row.

In all the three alternatives, the first row of the file must be a comma-separated headline, from which the input format can be decided, for example, if file format alternative number 3 is used, then the headline shall consist of only one word without any commas.

The calculation result is presented by adding the calculated values to the given comma-separated file at the end of each row. The function can be used iteratively, making changes to the box information and re-running using the same file. If the file format alternative 2 is used and the result from this calculation is accepted, production blocks can be generated using the same file as input.

The calculations are done by intersecting the hull model by the given boxes and then calculating the weight and centre of gravity of the hull items in each box. A fixed density of 7.84E-6 is used. The actual material definition of the hull is not considered.

The intention of the function is support in the definition of a production block structure and design blocks are therefore not considered.

Prerequisites:

An input file, preferable placed on the directory assigned to SB_SHIPDATA, must exist.

Instructions:

Select an input file in the displayed dialog.

Options:

None available.

Result:

The resulting CSV file can be viewed using the Log Viewer.

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