Create Penetration

The Create options on the Penetration subapplication menu allow you to create penetrations in the following ways:

Penetration Hole

This option allows you to create a penetration hole in a panel explicitly, where no existing element passes through it. You will normally use this option to add a door, window, access port, When you select this, the Create Compound Panel Fitting form displays:

The form allows you to select the specification which determines the geometry of the current penetration hole.

Use the Specification, Generic Type and Sub-Type options to select the required category for the hole specification and then select the specification from the resulting list of available types.

Select the required Justification for the hole relative to its owning panel.

When you click Properties, the Modify Properties form displays:

This form shows all of the current design parameter settings which specify the detailed geometry of the penetration. These can be edited as necessary.

Clear Spref option - unsets the specification reference for an item which no longer requires one (such as a single penetration hole which has been merged into a multiple penetration hole).

1 To 1 Penetration

This option allows you to create individual penetrations in a panel while you are designing in a particular application. The principle is to let you specify where you need penetrations for your penetrating elements without having to consider their design details, so that your design work can be carried out at maximum speed.

The option positions an ATTA at the penetration position and sets the design parameters to the current default settings. It also creates a CMPF and SBFI at the penetration position, but does not select any geometry for the hole on the assumption that this will be specified by the panel designer.

When you select this option from the Create menu, the 1 to 1 Penetration form displays:

When you select the 1 To 1 Penetration option, you will automatically be put into event-driven graphics mode to let you make rapid selections. Simply move the cursor into the 3D View and follow the status line prompts there to pick the penetrated and penetrating items for each location. If you have set Confirm to On, you will be prompted to accept or reject the penetration after each pair of picks.

If required, further selections of pairs of penetrated and penetrating items can be made by clicking Select. When all the selections have been made, click Apply to view the penetrations in the Hole Management form.

When you have finished creating 1 to 1 penetrations, click Dismiss; the event-driven graphics mode will be switched off and normal 3D View cursor mode will be resumed.

Penetration

This option allows you to create penetrations by selecting one or more penetrated items (panels or structural sections). The positions and geometry of the penetrations are calculated automatically to suit the picked items.

When you select this option from the Create menu, the Create Piping Penetrations form displays (shown here for the Pipework Application):

The version of the form which you see depends on the design application in which you are working.

When all the options have been set and you click Apply, the position of each penetration will be calculated by checking for clashes between items defined in the Elements to be penetrated option and the Elements that penetrate option. If you selected Pick using cursor in either of those steps, then you will be prompted to identify the individual items. Cancel the prompt when you have finished picking in each case.

When the process is complete, the Penetration Item List form displays automatically.

This form shows all data settings relevant to the current penetration, allowing you to make detailed design changes to the penetrating items. The form can be used in conjunction with a scrap view of the penetration to see the effects of your changes on the local geometry.

The List and Show options at the top control which penetration items are listed and how they are sorted into a hierarchic (indented) list. The way that these options behave depends on your current application (Pipework, Steelwork, or Panels & Plates). (For further details, see the ).

When you select an item in the upper list, attribute data for the penetrating element and the corresponding hole are shown in the Penetrating Item and Hole Information lists. The order in which these lists appear on the form depends on the options in force: in all cases, the middle list lets you edit the specification and design parameter data for the corresponding item, whereas the lower list displays the data for the other element involved in the penetration for information only.

All data in the middle list which you can edit from the form is prefixed by the > character (data shown without this prefix cannot be modified in this way). To change any of these settings, click on the corresponding line to display an appropriate form. Note that if you select an individual design parameter entry, you will see a form which lets you edit that data setting only.

Note:
Having fully specified the part of the penetration which relates to the penetrating items (the FITT), you must now do the same for the generated item (the CMPF and its SBFI). To do this see .