DMIGNAME

I/O Options Entry

DMIGNAME - Reduced Matrix Name Definition

Description

The DMIGNAME command can be used in the I/O Options section to define the name given to the reduced matrices written to an external data file.

Format

DMIGNAME = mtxname

Argument

Options

Description

mtxname

Default = AX

The name given to the reduced matrices written to an external data file, when PARAM, EXTOUT is present in the bulk data section.

If PARAM, EXTOUT, DMIGPCH is used, the file outfile_mtxname.pch is created.

If PARAM,EXTOUT, DMIGBIN is used, the file outfile_mtxname.dmg is created.

Both files contain the matrices:

•	KAmtxname - reduced stiffness matrix

•	MAmtxname - reduced mass matrix

•	Pmtxname - reduced loading matrix

Note:

The reduced mass matrix is only output if an eigenvalue subcase is present in the input file and the reduced loading matrix is only output if a linear static subcase is present in the input file.

Comments

1.	When a DMIGNAME command is not present, AX is used for mtxname.

2.	Only one occurrence of DMIGNAME is permitted.

3.	DMIGNAME must appear before the first subcase.

4.	See Direct Matrix Approach in the User's Guide for more detailed usage information.