ANALYSIS

Subcase Information Entry

ANALYSIS - Run Control and Solution Sequence Identifier

Description

The ANALYSIS command can be used in the I/O Options section to request that only a finite element analysis be performed (optimization input is ignored). It may also be used in the I/O Options or Subcase Information sections to identify the solution sequence for all subcases or for individual subcases, respectively.

Format

ANALYSIS = option

Argument	Options	Description
option	<ONLY, OPTSKIP, STATICS, NLSTAT, MODES, MCEIG, BUCK, DFREQ, MFREQ, DTRAN, MTRAN, DFOUR, MFOUR, HEAT, NLHEAT, MBD, EXPDYN, FATIGUE, RANDOM> Default = ONLY	The first two options ONLY and OPTSKIP refer to the run control functionality of the ANALYSIS command:
		ONLY:	Performs finite element analysis run only. Optimization inputs are checked but ignored.
		OPTSKIP:	Performs finite element analysis run only. Optimization inputs are ignored.
		The remaining options refer to the solution sequence identification functionality of the ANALYSIS command:
		STATICS:	Linear static or nonlinear quasi-static gap analysis.
		NLSTAT:	Small displacement nonlinear analysis.
		HEAT:	Linear steady-state heat transfer analysis or linear transient heat transfer analysis.
		NLHEAT:	Nonlinear steady-state heat transfer analysis.
		MODES:	Normal modes analysis.
		MCEIG:	Modal complex eigenvalue analysis.
		BUCK:	Linear buckling analysis.
		DFREQ:	Direct frequency response analysis.
		MFREQ:	Modal frequency response analysis.
		DTRAN:	Direct transient response analysis (linear and nonlinear)
		MTRAN:	Modal transient response analysis.
		DFOUR:	Direct transient response analysis through Fourier transformation.
		MFOUR:	Model transient response analysis through Fourier transformation.
		MBD:	Multi-body dynamics analysis.
		EXPDYN:	Geometric nonlinear explicit dynamic analysis.
		FATIGUE:	Fatigue analysis.
		RANDOM:	Random Response analysis.

Comments

1.	ANALYSIS=ONLY or ANALYSIS=OPTSKIP are only applicable in the I/O Options section.

2.	ANALYSIS=ONLY or ANALYSIS=OPTSKIP may be used in combination with one of the other ANALYSIS options.

3.	When ANALYSIS=ONLY or ANALYSIS=OPTSKIP are used, all elements (including design elements) are treated as non-design elements.

4.	When ANALYSIS=ONLY or ANALYSIS=OPTSKIP are used, all properties and grids referenced by size and shape variables will be set at the values on the associated property and GRID data.