Com- GUI Path
mandOptionMain Menu> Solution> Analysis Type> Analysis
OptionsSolution Listing Format HROUTMain Menu> Solution> Analysis Type> Analysis
OptionsMass Matrix Formulation LUMPMMain Menu> Solution> Analysis Type> Analysis
OptionsEquation Solver EQSLVEach of these options is explained in detail below.
- Option: New Analysis (ANTYPE)
Choose New Analysis. Restarts are not valid in a harmonic analysis; if you need to apply additional
harmonic loads, do a new analysis each time.- Option: Analysis Type: Harmonic (ANTYPE)
Choose Harmonic as the analysis type.- Option: Solution Method (HROPT)
Choose one of the following solution methods:- Full method
- Mode-superposition method
- Option: Solution Listing Format (HROUT)
This option determines how the harmonic displacement solution is listed in the printed output
(Jobname.OUT). You can choose between real and imaginary parts (default), and amplitudes and
phase angles.- Option: Mass Matrix Formulation (LUMPM)
Use this option to specify the default formulation (which is element dependent) or lumped mass
approximation. We recommend the default formulation for most applications. However, for some
problems involving "skinny" structures such as slender beams or very thin shells, the lumped mass
approximation often yields better results. Also, the lumped mass approximation can result in a
shorter run time and lower memory requirements.After you complete the fields on the Harmonic Analysis Options dialog box, click on OK to reach a
second Harmonic Analysis dialog box, where you choose an equation solver.- Option: Equation Solver (EQSLV)
You can choose the sparse direct solver (SPARSE), the Jacobi Conjugate Gradient (JCG) solver, or the
Incomplete Cholesky Conjugate Gradient (ICCG) solver. See the EQSLV command description or Se-
lecting a Solver in the Basic Analysis Guide for details on selecting a solver.Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationPerforming a Harmonic Analysis