EDE
I/O Options and Subcase Information Entry Used to request element energy loss per cycle and element energy loss per cycle density output for all subcases or individual subcases, respectively.
Format
EDE (format_list, type, dmig, group) = option
Definitions
Argument | Options | Description |
---|---|---|
format | <HM, H3D, PUNCH, OP2, PLOT, blank> |
|
type | <AVERAGE, AMPLITUDE, PEAK> |
|
dmig | <DMIG, NODMIG> |
|
group | <PROP,
COMP, SET,
OPROP, OCOMP,
OSET> Default = blank |
|
option | <YES, ALL,
NO, NONE,
SID> Default = ALL |
|
Comments
- When an EDE command is not present, element damping energy and damping energy density is not output.
- Initial thermal strain is included in the calculation of element energy loss per cycle and element energy loss per cycle density.
- Multiple formats are allowed on the same entry; these should be comma separated. If a format is not specified, this output control applies to all formats defined by the OUTPUT command, for which the result is available.
- Multiple instances of this card are allowed. If instances are conflicting, the last instance dominates.
- For optimization, the frequency of output to a given format is controlled by the I/O option OUTPUT.
- type only applies to Frequency Response Analysis.
- The three ways to calculate the Element Damping Energy in
Frequency Response Analysis are:
- Output Type
- Formula
- Average
- Amplitude
- Peak
Where,- Corresponding Elemental Energy
- Real Part of Displacement
- Imaginary Part of Displacement
- Elemental Damping Matrix
- format=OUTPUT2 can also be used to request results to be output in the Nastran output2 format (.op2 file).
- The group argument is only supported only for
Static, Eigenvalue, Frequency response, Transient analysis and aeroelastic
divergence analysis with H3D and PUNCH formats. Group Damping Energy and Group
Damping Energy Density are available under the Element Damping Energy results
type in the H3D file. In the Punch file, the Property/Component ID’s and the
corresponding Damping Energy and Damping Energy Density are available.
If SET/OSET is requested a SID of Boolean set with operator OR is expected in the field option. Element SETs referenced when using this option should have the OPERATOR field set to OR. Regular element sets without Boolean OR are not allowed. SET/OSET is currently only supported for H3D and PUNCH formats.