Mechanical APDL Structural Analysis Guide
cm,fixedsu,node allsel,all ! *** Material mp,ex,1,27899996.8 mp,nuxy,1,0.3 mp,dens,1,2.587991718e-10 ! *** Constraints d,15,all, ...
/solution antype,spectr spopt,sprs,,,yes! reuse the existing mode file dmprat,0.02 grp,0.001 svtyp,2 sed,,1! Y-direction base ex ...
input instructions and printouts. However, most ANSYS users who have at least limited finite element experience should be able t ...
Command(s):/SOLU GUI: Main Menu> Solution Define the analysis type and analysis options: For spectrum type [SPOPT], choose P ...
frequencies. If you specify more than one form of damping, Mechanical APDL calculates an effective damping ratio at each frequen ...
For pressure PSD excitation (where the pressure distribution was provided in the modal analysis), bring in the load vectors fro ...
Table 6.3: Solution Items Available in a PSD Analysis (p. 163) shows a summary of the possible solution sets. To limit the amoun ...
The SIGNIF and COMODE fields on the PSD mode combination method [PSDCOM] offer options to reduce the number of modes to be combi ...
Postprocessing operations read your data from the results file. Only the solution data you SAVE will be available if you resume ...
6.6.3.1.2. Display the Results Use the same options available for the SPRS analysis. Note Nodal averaging performed by the PLNSO ...
*GET,VARIANCE,VARI,5,EXTREME,VLAST! get the integral value STDDEV=SQRT(VARIANCE)! convert to standard deviation (1-sigma) Note T ...
MXPAND, ...! Number of modes to expand, ... D, ...! Constraints SAVE SOLVE! Initiates solution FINISH ! ! Obtain the Spectrum So ...
St ep 4: Review the Results (p. 172) If you wish to perform mode selection that includes and expands only the significant mode ...
Choose a sufficient number of modes to characterize the structure's response and cover the fre- quency range spanned by the spec ...
These commands allow computation of three different types of responses: Displacement (label = DISP) Displacement response refe ...
The output from the solution includes the Response Spectrum Calculation Summary. This table, which is part of the printed output ...
MXPAND, ...! Number of modes to expand, ... D, ...! Constraints SOLVE! Initiates solution SAVE FINISH ! ! Obtain the Spectrum So ...
The database must contain the same model from which the modal solution was obtained. The Jobname.FULL,.ESAV, and .EMAT files mu ...
The input spectrum type can be displacement, velocity, force, pressure, or acceleration. The type of excitation (base excitatio ...
For pressure excitation (where the pressure distribution was provided in the modal analysis), bring in the load vectors from th ...
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