Training on Caesar II1

Chapter V Static Output Processor

BAB V

Static Output Processor

BAB V

Static Output Processor

Training on Caesar II2

Chapter V Static Output Processor

5.1 Entry Into the Static Output Processor5.1 Entry Into the Static Output ProcessorWith the completion of a static analysis the CAESAR II output screen automaticallyappears, allowing interactive review of the analytical results. The static results may also be accessed anytime after the analysis has been completed through the CAESAR II Main Menu option - OUTPUT-STATIC.

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Chapter V Static Output Processor

Processor Screen

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Chapter V Static Output Processor

It is from this screen that the user orchestrates all output review activity. The user may

Interactively review 80 or 132 column terminal reports for any selected combination of load cases and/or report types.

Print or save to file copies of 80 or 132 column reports for any combination of load cases and/or report types.

Add Title lines to output reports.Review results in a graphical manner.

The CAESAR II output processor was designed so that piping results could be quickly reviewed in tabular form, graphically, or using any combination of tabular or graphical approaches.

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Chapter V Static Output Processor

File-Open — Opens a different job for output review. The user is prompted for the file to be opened.

File-Save — Saves the selected reports to a disk file. The user is initially rompted for the file name. Upon closing, or exit, a Table of Contents is added to the file.

File-Print — Prints the selected reports. Upon closing, or exiting, a Table of Contents is printed. This is described later in the chapter.

View-Reports— Displays the selected reports on the terminal. This permits the analysis data to be reviewed interactively in text format. After selecting the desired combination of one or more active load cases with any combination of report options and executing the View-Reports command, each report is presented one at a time for inspection..

Available Command

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Chapter V Static Output Processor

Animation — Allows the user to view graphic animation of the displacement solution.

Input — Returns to the piping input processor.

Enter Titles — Allows the user to enter report titles for this group of reports. CAESAR II allows the user to customize the report with a two line title or description. This title may be assigned once for all load case reports sent to the printer or a disk drive; or the title may be changed for each individual report before it is moved to the output device. When CAESAR II receives this command a dialog prompts for the titles.

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Chapter V Static Output Processor

Plot — This command allows the user to superimpose analytical results onto a plot of the system model. This is described in more detail later in the chapter.

132 Column Reports — This checkbox selects the 132 column report over the 80 column report. 132 column reports often carry more information than the 80 column reports, but require compressed fonts or wide paper.

5.2 Report Options5.2 Report Options

For most load cases (except hanger design and fatigue) there are seven different report options that can be selected for review.

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1. Displacements

Translations and rotations for each degree of freedom are reported at each node in the model.

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Chapter V Static Output Processor

2. Restraints

Forces and moments on each restraint in the model are reported. There is a separate report generated for each load case selected.

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Chapter V Static Output Processor

3. Restraint Summary

Similar to the restraint report, this option provides force and moment data for all valid selected load cases together on one report.

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Chapter V Static Output Processor

4. Global Element Forces

Forces and moments on the piping are reported for each node in the model.

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Chapter V Static Output Processor

5. Local Element Forces

Forces and moments have been transferring into the CAESAR II local coordinate system.

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Chapter V Static Output Processor

6. Stresses

SIFs and Code Stresses are reported for each node in the model.

The code stresses are compared to the Allowable stress at each node as a percentage.

Note that stresses are not computed at nodes on rigid elements.

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Chapter V Static Output Processor

7. Sorted Stresses

Bending, Torsion, and Code Stress each are sorted from highest to lowest value with corresponding node numbers.

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Chapter V Static Output Processor

5.3 Notes on Printing or Saving Reports to a FileThe tabular results brought to the screen may be sent directly to a printer in either a 132 or 80 column format.

To print a hard copy of the reports, Execute the File-Print command.

Different combinations of load cases and report types may be chosen, each followed by the File-Print command, to create a single report.

Typically, the set of output reports that a user might wish to print out for documentation purposes might be:

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Chapter V Static Output Processor

To send reports to a file (in ASCII format) rather than the printer, the user

should execute the FILE-SAVE command. Upon initial selection, the user

is presented with a file dialog to select the name of the file. To change the

file name for a new report, the user should select FILE-SAVE AS.

All reports that are to be saved in the output file need not be declared at one time. Subsequent reports sent to the file during the session are appended to the file started in the session. (These output files are only closed and overwritten when a new output device, such as a printer, or another file, is defined.)

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5.4 Notes on Plotting Static Results

The CAESAR II output plotting is

quite comprehensive. The

new user is encouraged to

liberally experiment with all output

options, noting which in particular seems

most appropriate for a given application.

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The output graphics are very similar to input graphics. In addition, calculated results may be displayed on the plot. Displaced shapes may be shown for the final loaded condition or may be shown in

progressive steps as the system is loaded.

Displacements along any global axis can be sorted and displayed. Values are printed one at a time from the largest to the smallest.

Symbolic or numeric forces, moments, and stresses may be superimposed on the displaced shape plot.

Restraints, and their line of action, can be shown graphically or numerically on the displayed plot.

Hard copies of the graphics may be sent to a printer from the plot menu directly.

Maximum SIFs, and section modulus can be displayed on the plotted geometry.

Force, moment, and stress data can be sorted and displayed from the largest to the smallest, and can be plotted symbolically as variable size arrowheads or explosion symbols.

Any number of different load cases can be reviewed without leaving the plot mode. The current load case to be processed is set via the Load Case drop down.

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“SHOWing” Results on the Plot

The variety of CAESAR II output plot functions are accessed from the Show menu. This menu is broken into submenus - these are Displacements, Restraints, Forces/Moments and Stress. These are described below:

Main Show Menu

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1. Displacement Sub Menu: Deflected Shape — Overlays the scaled deflected shape of the displayed

geometry onto the current plot for the currently selected load case.

Grow — Shows progressive displaced shapes of the geometry on the current plot, for the currently selected load case.

Scale — Lets the user specify the deflected shape plot scale factor.

Maximum Displacement X — Allows the user to put the actual magnitude for X displacements on the currently displayed geometry. It starts with highest for given direction, then puts 2nd, 3rd highest, etc., until the user escapes.

Maximum Displacement Y — Allows the user to put the actual magnitude for Y displacements on the currently displayed geometry. It starts with highest for given direction, then puts 2nd, 3rd highest, etc., until the user escapes.

Maximum Displacement Z — Allows the user to put the actual magnitude for Z displacements on the currently displayed geometry. It starts with highest for given direction, then puts 2nd, 3rd highest, etc., until the user escapes.

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Chapter V Static Output Processor

2. Restraints Sub Menu: Restraints — Puts restraint symbols on the displayed plot. Restraints

are plotted as arrow heads, with the direction of the arrow indicating the direction of the force exerted by the restraint on the piping system.

Hangers — Puts restraint symbols on the plot indicating the action of the spring hangers.

Scale — Allows the user to specify the scale at which the restraint symbols are plotted.

Forces-X — Puts the magnitudes of the FX restraint loads on the plot.

Forces-Y — Puts the magnitudes of the FY restraint loads on the plot.

Forces-Z — Puts the magnitudes of the FZ restraint loads on the plot.

Moments-X — Puts the magnitude of the MX restraint loads on the plot.

Moments-Y — Puts the magnitude of the MY restraint loads on the plot.

Moments-Z — Puts the magnitude of the MZ restraint loads on the plot.

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3. Forces/Moments Sub Menu :

Forces-X — Displays all of the element forces acting in the X direction on the plot.

Forces-Y — Displays all of the element forces acting in the Y direction on the plot.

Forces-Z — Displays all of the element forces acting in the Z direction on the plot.

Moment-X — Displays all of the element moments acting in the X direction on the plot.

Moment-Y — Displays all of the element moments acting in the Y direction on the plot.

Moment-Z — Displays all of the element moments acting in the Z direction on the plot.

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Maximum-FX— Sorts all elemental forces acting in the X direction and prints them one at a time from the highest to the lowest. Forces are displayed one at a time until the user escapes.

Maximum-FY— Sorts all elemental moments acting in the Y direction and prints them one at a time from the highest to the lowest. Forces are displayed one at a time until the user escapes.

Maximum-FZ— Sorts all elemental forces acting in the Z direction and prints them one at a time from the highest to the lowest. Forces are displayed one at a time until the user escapes.

Maximum-MX— Sorts all elemental moments acting in the X direction moments and prints them one at a time from the highest to the lowest. Moments are displayed one at a time until the user escapes.

Maximum-MY— Sorts all elemental moments acting in the Y direction moments and prints them one at a time from the highest to the lowest. Moments are displayed one at a time until the user escapes.

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Chapter V Static Output Processor

Maximum-MZ — Sorts all elemental moments acting in the Z direction moments and prints them one at a time from the highest to the lowest. Moments are displayed one at a time until the user escapes.

Symbol-FX — Puts arrowhead symbols on the plot with a size relative to the magni-tude of the X direction force acting on the element at that point. The user is given the opportunity to alter the scaled symbol size.

Symbol-FY — Puts arrowhead symbols on the plot with a size relative to the magni-tude of the Y direction force acting on the element at that point. The user is given the opportunity to alter the scaled symbol size.

Symbol-FZ — Puts arrowhead symbols on the plot with a size relative to the magni-tude of the Z direction force acting on the element at that point. The user is given the opportunity to alter the scaled symbol size.

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Chapter V Static Output Processor

Symbol-MX — Puts arrowhead symbols on the plot with a size

relative to the magnitude of the X direction moments acting on

the element at that point. The user is given the opportunity to

alter the scaled symbol size.

Symbol-MY — Puts arrowhead symbols on the plot with a size

relative to the magnitude of the Y direction moments acting on

the element at that point. The user is given the opportunity to

alter the scaled symbol size.

Symbol-MZ — Puts arrowhead symbols on the plot with a size

relative to the magnitude of the Z direction moments acting on

the element at that point. The user is given the opportunity to

alter the scaled symbol size.

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4. Stress Sub Menu: Overstress — Displays overstressed points and their

magnitude. Overstressed conditions are only detected for load cases where a code compliance check was done (i.e., where there are allowable stresses available).

Maximum — Displays stresses one at a time from the largest to the smallest values, until the user escapes.

Bending — Displays all bending stresses on the displayed geometry.

Torsional — Displays all the torsional stresses on the displayed geometry.

Axial — Displays all the axial stresses on the displayed geometry.

Code — Displays all calculated code stress values on the displayed geometry.

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Symbol Bending — Puts explosion symbols on the plot with a size proportional to stress at the point. The user is given the opportunity to alter the scaled symbol size.

Symbol Torsional — Same as above, for torsional stress.

Symbol Axial — Same as above, for axial stress.

Symbol Code — Same as above, for code stress.

Color-Bending — Plots the piping system in a range of colors, where the color corresponds to the value of the bending stress (colors and corresponding stress levels are set in the Configuration/Setup module).

Color-Torsional — Plots the piping system in a range of colors, where the color corresponds to the value of the torsional stress (colors and corresponding stress levels are set in the Configuration/Setup module).

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Color-Axial — Plots the piping system in a range of colors, where the color corresponds to the value of the axial stress (colors and corresponding stress levels are set in the Configuration/Setup module).

Color-Code — Plots the piping system in a range of colors, where the color corresponds to the value of the bending stress (colors and corresponding stress levels are set in the Configuration/Setup module).

SIF — Displays the maximum stress intensification factor for each element on the displayed plot.

Section Modulus — Displays the section modulus of each element on the plot.

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Chapter V Static Output Processor

5.5 Notes on Animation of Static ResultsCAESAR II allows the user to view the piping system as it moves to the displaced position of the basic load cases. To animate the static results, execute the View-Animate command. The following screen appears:

Animated Graphic Screen

The animated plot menu has several plot selections.

Motion and Volume Motion are the commands to activate the animation. Motion uses centerline representation while Volume Motion produces volume graphics.

The desired load case may be selected from the drop down list. Animations may be sped up or slowed down or stopped using the toolbars.