The .disp file is an OptiStruct
ASCII format results file.
File Creation
This file is created when the OPTI, OS or BOTH formats are chosen. (See documentation
for the I/O Option OUTPUT).
File Contents
Result |
Description |
Acceleration |
Acceleration results from
frequency response analysis and linear transient analysis. Output
is controlled by the I/O Option ACCELERATION.
|
Displacement |
Displacement results from
linear static, inertia relief, frequency response analysis, and
linear transient analysis. Output is controlled by the I/O Option
DISPLACEMENT.
|
Eigenvector |
Eigenvector results from
normal modes and linear buckling analysis. Output is controlled
by the I/O Option DISPLACEMENT.
|
Velocity |
Velocity results from
frequency response analysis and linear transient analysis. Output
is controlled by the I/O Option VELOCITY.
|
File Format
The displacement file has the following format:
For each iteration, the following header is
used: |
|
iter |
Iteration |
Numids |
- Data
- Description
- iter
- Keyword identifying that the next field is the iteration number.
- Iteration
- The iteration number.
- Numids
- The number of linear static subcases plus the number of calculated
normal and buckling modes.
Within the iteration section, the following header
is used for each linear static subcase, normal or linear
buckling mode, or direct modal frequency response: |
|
LCID |
Numnod |
Freq |
Result:
SPCcase
(Datatype) |
- Data
- Description
- LCID
- Output ID for the subcase or mode. This is not necessarily the same as
the subcase ID defined in the input data.
- Numnod
- Number of grids in the model.
- Freq
- Frequency or Buckling eigenvalue (1.0 for static subcases).
- Result
- Keyword declaring the result type given.
- DISP indicates displacement result.
- VELO indicates a velocity result (for frequency
response analysis only).
- ACCE indicates an acceleration result (for frequency
response analysis only).
- SPCcase
- SPC set identification number for linear static, inertia relief, or
frequency response subcases or 1 for eigenvectors.
- Datatype
- Keyword indicating the type of subcase involved.
- LOAD declares data is from a static subcase.
- EIGV declares data is from a normal modes subcase.
- BKLV declares data is from a linear buckling
subcase.
- DFRQ declares data is from a direct frequency response
subcase.
- MFRQ declares data is from a modal frequency response
subcase.
Within the subcase or mode section, the following
information is provided for each node: |
|
NID |
X
disp |
Y
disp |
Z
disp |
|
- Data
- Description
- NID
- Node identification number.
- X
- X displacement of the node.
- Y
- Y displacement of the node.
- Z
- Z displacement of the node.
The displacement file has the following format for linear transient analysis:
For each
iteration, the following header is used: |
|
iter |
Iteration |
|
- Data
- Description
- iter
- Keyword identifying that the next field is the iteration number.
- Iteration
- The iteration number.
Within the
iteration section, the following header is used for each
transient analysis subcase: |
Subcase |
Id |
Label |
|
Time |
Time |
|
|
Result Type |
Domain |
[Format] |
|
- Data
- Description
- Id
- Output ID for the subcase. This is not necessarily the same as the
subcase ID defined in the input data.
- Label
- Subcase label.
- Time
- Time increment information.
- Format
- Complex, Real, Imaginary, Phase, and so on.
- Result Type
- Keyword declaring the result type given.
- DISP indicates displacement results.
- VELO indicates a velocity result.
- ACCE indicates an acceleration result.
Within the subcase section, the following information is
provided for each grid: |
|
GID |
X |
Y |
Z |
RX |
RY |
RZ |
- Data
- Description
- GID
- Grid identification number.
- X
- X value of the grid.
- Y
- Y value of the grid.
- Z
- Z value of the grid.
- RX
- RX value of the grid.
- RY
- RY value of the grid.
- RZ
- RZ value of the grid.
Comments
- The I/O Option Previously Supported Results controls
the frequency of output for analytical results during an optimization.