EIGVRETRIEVE

Subcase Information Entry The EIGVRETRIEVE command can be used in the Subcase Information section of Modal Frequency Response or Modal Transient Response analysis to retrieve eigenvalue and eigenvector results of a previously run Normal Modes Analysis from an external data file (.eigv).

Format

EIGVRETRIEVE = integer1, integer2, integer3, ...

Definitions

Argument	Options	Description
`integer#`	<integer> No default	Retrieves eigenvalues and eigenvectors from external data files for use in a Modal Frequency Response or Modal Transient Response Analysis. The external eigenvalue and eigenvector data file name is of the form: <prefix>.#.eigv Where, <prefix> Is defined by the EIGVNAME I/O Options Entry in the Modal Frequency Response or Modal Transient Response Analysis model # The integer arguments defined on the EIGVSAVE entry. 4

Argument

Options

Description

integer#

No default

Retrieves eigenvalues and eigenvectors from external data files for use in a Modal Frequency Response or Modal Transient Response Analysis.

The external eigenvalue and eigenvector data file name is of the form:

<prefix>.#.eigv

Where,

<prefix>: Is defined by the EIGVNAME I/O Options Entry in the Modal Frequency Response or Modal Transient Response Analysis model
#: The integer arguments defined on the EIGVSAVE entry. 4

Comments

Only one occurrence of EIGVRETRIEVE per subcase is permitted.
When multiple integer arguments are provided, eigenvalues are retrieved from multiple external data files and combined.
If EIGVRETRIEVE is not present, eigenvalue and eigenvector results are not retrieved from external data files and a normal modes analysis is performed for the modal frequency response or modal transient response analysis subcase.