Cutouts for Inter-crossing Panels
- Last UpdatedDec 04, 2025
- 3 minute read
A specific cutout type, 9999, is used to make "cutouts" in intersecting panels in a so called egg-box connection.
Both of the two panels involved in the crossing must have a cutout for the other panel, and the cutouts must be set individually.
Syntax:
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CUTOUT, [TYPE= ] 9999 , <interc_pan> [,REF] [, DIR=<direction>] [, R1=<radius_1>] [, R2=<radius_2>] [, M1=<width_1>] [, M2=<width_2>] [, M3=<height_1>] [, M4=<height_2>] ; |
Description
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<interc_pan> |
The name of the panel that passes through the current one. |
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REF |
Indicates that the cutout will be made for the reflected image of the inter-crossing panel. |
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DIR |
The direction of the v-axis of the cutout (see the image below). The v-axis is located in the mold plane of the inter-crossing panel. (Unless the mold plane is located inside the panel. In that case the v-axis will be located on the plate surface in the negative direction of the w-axis of the intersected panel). The direction to be given must be one of the global ship directions FOR, AFT, PS, SB, TOP or BOT. |
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When the two panels have different heights the cutout will automatically be located at the common limit in the bigger panel and in this case DIR need not be given. DIR is compulsory in other cases. |
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R1 |
The radius R1 (see the image below). A positive value indicates a radius, a negative value a KS-notch. Default value is -10, that means, a KS10 notch. |
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R2 |
Like R1 (see the image below). R2 is set to R1 if not given. |
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M1 |
The notch width (see the image below). |
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M2 |
Like M1. M2 is set to M1 if not given. |
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M3 |
Height of the notch on the mold line side. |
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M4 |
Like M3. M4 is set to M3 if not given. |
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M1 and M3 will be set to R1 if smaller than R1. Likewise M2 and M4 will be set to R2 if smaller than R2. If R1 (R2) <=0 then M1 and M3 (M2 and M4) are set to 0. |
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R, M1 and M3 are valid for the side of the cutout welded against the molded side of the intersected panel, R2,M2 and M4 for the opposite side. |
Controlling parameters of "egg-box" cutout:
This cutout has a number of parameters which are possible to control via logical variables. The three distances TD, SD and TR denote the free space between the panels at the top of the cutouts, the gap along the cutouts and the top radius, respectively. The logical names are:
TD: SBH_INTERCROSS_CUTOUT_TOPDIST (default: 5 mm)
SD: SBH_INTERCROSS_CUTOUT_SIDEDIST (default: 1.5 mm)
TR: SBH_INTERCROSS_CUTOUT_TOPRADIUS (default: 3 mm)
Note: TD will be shared equally between the two interlocating cutouts. for example, if the panel heights are 1000 then the cutout heights will be 502.5 (supposing the cutouts are equal and the default value of TD is used).
Condition for this cutout to be set is that the panels have a common point in at least one of their limits.
The heights of the cutouts will be calculated so that the welding height is equal in the interlocking cutouts (considering for example, the height of the notches at the root of the cutout).
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Example: |
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An input scheme describing two inter-crossing panels. PAN, 'A', SP, X=300, DT=101; |
Remark:
The cutout statement in panel A has to be entered after the creation of panel B.
Two inter-crossing panels:
When splitting a panel containing cutouts of the type 9999, a warning will be given in case the opposite cutout has not been defined or if it has been defined but not with the opposite direction.