/DCOMP
Optimization Keyword Defines manufacturing constraints for composite sizing optimization.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
/DCOMP/dcomp_ID | |||||||||
title | |||||||||
grpart_ID | |||||||||
CTYP=1: | |||||||||
CTYP | LTMIN | LTMAX | grsh3n_ID | grshel_ID | LTEXC | ||||
CTYP=2: | |||||||||
CTYP | PTANGLE | PTMIN | PTMAX | grsh3n_ID | grshel_ID | PTEXC | |||
CTYP=3: | |||||||||
CTYP | PPANGLE | PPMIN | PPMAX | grsh3n_ID | grshel_ID | PPEXC | |||
CTYP=4: | |||||||||
CTYP | BANGLE1 | BANGLE2 | |||||||
CTYP=5: | |||||||||
CTYP | CANGLE | CTHICK | |||||||
CTYP=6: | |||||||||
CTYP | PDANGLE | PDTYP | PDMAX | grsh3n_ID | grshel_ID | PDEXC |
Definition
Field | Contents | SI Unit Example |
---|---|---|
dcomp_ID | Manufacturing constraints for composite sizing
optimization identifier (Integer > 0) |
|
title | Title (Character, maximum 100 characters) |
|
grpart_ID | Part
group identifier defining the design
space. (Integer > 0) |
|
COMP | Composite manufacturing constraints applied are indicated. Indicates that information about manufacturing constraints is to follow. The value of COMP is equal to the total number of composite manufacturing definitions that follow. | |
CTYP | Composite manufacturing type definition flag.
(Integer) |
|
LTMIN | Minimum laminate thickness for the laminate
thickness constraint
(CTYP=1). (Real or blank) |
|
LTMAX | Maximum laminate thickness for the laminate
thickness constraint
(CTYP=1). (Real or blank) |
|
grsh3n_ID | 3-node shell group identifier (Integer > 0) |
|
grshel_ID | 4-node shell group identifier (Integer > 0) |
|
LTEXC | Indicates that certain plies are excluded from
the laminate thickness constraint
(CTYP=1).
Supported options are:
(Integer) |
|
PTANGLE | Ply
orientation in degrees to which the ply thickness
constraint
(CTYP=2) is
applied. (Real) |
|
PTMIN | Minimum thickness for the ply thickness
constraint
(CTYP=2). (Real or blank) |
|
PTMAX | Maximum thickness for the ply thickness
constraint
(CTYP=2). (Real or blank) |
|
PTEXC | Indicates that certain plies are excluded from
the ply thickness constraint
(CTYP=2).
Supported options are:
(Integer) |
|
PPANGLE | Ply
orientation in degrees to which the ply thickness
percentage constraint is applied
(CTYP=3). (Real) |
|
PPMIN | Minimum percentage thickness for the ply
thickness percentage constraint
(CTYP=3). (Real or blank) |
|
PPMAX | Maximum percentage thickness for the ply
thickness percentage constraint
(CTYP=3). (Real or blank) |
|
PPEXC | Indicates that certain plies are excluded from
the ply thickness percentage constraint
(CTYP=3).
Supported options are:
(Integer) |
|
BANGLE1 | First ply orientation in degrees to which the
balance constraint is applied
(CTYP=4). (Real) |
|
BANGLE2 | Second ply orientation in degrees to which the
balance constraint is applied
(CTYP=4). (Real) |
|
CANGLE | Ply
orientation in degrees to which the constant
thickness constraint is applied
(CTYP=5). (Real) |
|
CTHICK | Constant ply thickness for the constant thickness
constraint
(CTYP=5). (Real) |
|
PDANGLE | Ply
orientation in degrees to which the ply drop-off
constraint is applied
(CTYP=6). (Real) |
|
PDTYP | Drop-off constraint types. 1
(Integer) |
|
PDMAX | Maximum allowed drop-off for the ply drop-off
constraint
(CTYP=6). (Real) |
|
PDEXC | Indicates that certain plies are excluded from
the ply drop-off constraint
(CTYP=6).
Supported options are:
(Integer) |
Example
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/DCOMP/1
dcomp example
# grpartID
1
# CTYP=1 PPMIN PPMAX
1 0.2 2.5
# CTYP=5 BANGLE1 BANGLE2
5 -45.0 45.0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
Comments
- The option for
selecting the type of drop-off constraints for PDTYP is
defined for a set of plies.The PDTYP options are:
- TOTSLP
- TOTDRP
Assuming that the plies are stacked as Figure 1, the following definition is: