Mechanical APDL Structural Analysis Guide

GUI:Close the Solution window.

5.4.4.3. Reviewing the Results of the Expanded Solution

You review results for an expansion pass in the same way that you review results for most structural
analyses. See Review the Results in "Structural Static Analysis".

You can review these results using POST1. (If you expanded solutions at several time points, you can
also use POST26 to obtain graphs of stress versus time, strain versus time, and so on.) The procedure
to use POST1 (or POST26) is the same as described for the full method.

5.4.5. Review the Results

Results consist of displacements, stresses, and reaction forces at each time-point for which the solution
was expanded. You can review these results using POST26 or POST1, as explained for the full method
(see Review the Results (p. 118)).

Note

Reaction forces and other force output (PRRSOL,FSUM,RFORCE, etc.) contain only the

static contributions. The inertial and damping contributions are not included or available

(FORCE command).

5.4.6. Sample Input for a Mode-Superposition Transient Dynamic Analysis

A sample input listing for a mode-superposition transient analysis is shown below:

! Build the Model

/FILNAM,...! Jobname

/TITLE,...! Title

/PREP7! Enter PREP7

---

---! Generate model

---

FINISH

! Obtain the Modal Solution

/SOLU! Enter SOLUTION

ANTYPE,MODAL! Modal analysis

MODOPT,LANB! Block Lanczos

MXPAND,,,,YES! Expand the results and calculate element results

D,...! Constraints

SF,...! Element loads

ACEL,...

SAVE

SOLVE

FINISH

! Obtain the Mode-Superposition Transient Solution

/SOLU! Reenter SOLUTION

ANTYPE,TRANS! Transient analysis

TRNOPT,MSUP,...! Mode-superposition method

LVSCALE,...! Scale factor for element loads

F,...! Nodal Loads

MDAMP,...! Modal damping ratios

DELTIM,...! Integration time step sizes

SOLVE! Solve 1st load step

---! Remember: The 1st load step is

---! solved statically at time=0.

---

---! Loads, etc. for 2nd load step

TIME,...! Time at end of second load step

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Transient Dynamic Analysis