Doubling Plates Statement
- Last UpdatedDec 08, 2025
- 4 minute read
"Doubling plate" is the name of plate parts that are used to reinforce openings in plane panel plates or as support for pillars. Doubling plates are always attached to the surface of a panel plate. Such plates are generated via the DOUBLING statement.
Syntax
|
/CNO=<cno>\ / CLO \ DOU < NOT=<no> >,M1=<dist>[,< >],MAT=<th> \CUR='cur'/ \ [M2=<dist1>]/ [ POS=<posno>] [ SID=FOR | AFT | TOP | BOT | PS | SB ] [ { P | S} ] [ QUA=<quality> ] [ NOA=<notch>] [ NOB=<notch>,SEA=<no.>[,’<panel>'] [ BEV=<bev1> [,<bev2>]] [,NAB] [,WEL=<wel1>[,<wel2>]] [,GRI=<number>[<number>]] [ AS1=<str> ] [ AS2=<str> ] [ AS3=<str> ] [ AS4=<str> ] [ AR=<ass> ] [ ARP=<ass> ] [ ARS=<ass> ] [,COL[OUR]= <colour [,NO= <no>] [,COM[MENT]= <comment>] [,DU= <offset>] [,DV= <offset>] [,T= <angle>] ; |
Description
The position and geometry may be defined by one of these different alternatives:
-
By a hole with number CNO.
-
By a notch with number NOT.
-
By a curve CUR, defining the geometry of the doubling.
In case of 1 and 2 the geometry of the doubling plate is (at least partly) controlled by a parallel displacement of the component it is associated with.
In case of 3, the curve may be used as a pillar Pad. By attaching the doubling to the pillar, the pillar and doubling will be connected and the pillar height will be adjusted.
The hole/notch may either be completely covered by the doubling plate or the region around the component may be reinforced by a strip of plate parallel to the contour of the component
|
M1 |
Width of strip in case of a doubling strip. Otherwise, the size by which the doubling overlaps the plate |
|
CLO |
The doubling plate should cover the whole referenced component. Incompatible with M2. |
|
M2 |
Distance from the inner curve of the strip to the component it is associated with. Incompatible with CLO. |
|
MAT |
Material thickness of the doubling plate |
|
P | S |
Symmetry of the doubling plate. P only valid portside, S only valid starboard (relevant only in otherwise symmetrical panels). |
|
QUA |
Quality of the material. |
|
NOA |
A notch should be placed in the corner of a doubling plate. |
|
NOB |
A notch should be placed for a seam (only valid when reference type is NOTCH). NOB is the notch designation for the seam SEA. |
|
SEA |
Referenced seam to make the notch NOB. <no> is the seam number. The seam number in panel <panel>. If a seam in the shell surface <panel> is the surface name. |
|
BEV |
Bevel codes to be used for panels of the doubling contour. (Only valid when reference type is NOTCH). |
|
<bev1> is bevel along the part of the contour following the part associated with M1. |
|
|
<bev2> is the bevel along the part of the contour following the part associated with M2. |
|
|
<bev1> is beveling in the first beveled interval in the circulation direction of the contour, <bev2> is the second. If the notch is for a seam and the doubling plate is open and <bev2> is left out then <bev2> = <bev1>. |
|
|
NAB |
Switch off automatic bevel. There will then be no bevel. |
|
WEL |
Defines the welding size of the doubling contour. Same rules as for bevel above. |
|
GRI |
Defines the grinding of the doubling contour. Same rules as for bevel above. |
|
COLOUR |
Color of all doubling plates defined in the statement. |
|
NO |
Number of the doubling. |
|
COMMENT |
An arbitrary comment string |
|
ATT |
Panel name containing pillar. |
|
PILLAR |
Pillar number to connect the doubling to. |
|
DU DV T |
Offset of curve |
General purpose strings
AS1
AS2
AS3
AS4
Assembly references
AR
ARP
ARS
Example 1:
Doubling plate around hole, (symbolic view and model view).
DOU, CNO=2, M1=250, M2=15, MAT=12, SID=AFT, POS=8;
Example 2:
Doubling plate covering a notch.
DOU, NOT=3, M1=30, CLO, MAT=20, SID=FOR, POS=143, AS1='DNOT';
Example 3:
Doubling plate (strip) around a notch.
DOU, NOT=3, M1=30, MAT=20, SID=FOR, POS=143, AS1='DNOT';
Example 4:
Doubling plate for a notch at a seam.
DOU, NOT=1, M1=125, M2=25, MAT=30, SID=FOR, POS=118, BEV=250;
Ppanparts will mark the panel plates with the double plate edges and also handle the beveling including dotori.
In the automatic parts generation the edge contour of the doubling plates will be marked or the plate parts they are welded to. The doubling plates themselves will be equipped with bevel information, including dotori.