Course in ANSYS - Aalborg Universitethomes.civil.aau.dk/shl/ansysc/ansys-example0154.pdf · Example...
Transcript of Course in ANSYS - Aalborg Universitethomes.civil.aau.dk/shl/ansysc/ansys-example0154.pdf · Example...
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Course in ANSYS
Example0154
Computational Mechanics, AAU, EsbjergANSYS
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Example – Frame 2D
E = 210000N/mm2
n = 0.3L= 1000mmH = 1000mma = 20mmb = 50mmc = 400mmF = 10000NI = 208333N/mm4
Example0154 2Computational Mechanics, AAU, EsbjergANSYS
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Example – Frame 2DObjective:Compute the maximum deflection and the member forces Tasks:Display the deflection figure? Display member forces?Topics:Start of analysis, Element type, Real constants, Material, modeling, element size for beam models, saving/restoring
Example0154 3Computational Mechanics, AAU, EsbjergANSYS
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Example - titleUtility Menu > File > Change Jobname/jobname, Example0154 Command line entry
GUI
Enter: Example0154
Utility Menu > File > Change Title/title, Frame 2D
Enter: Frame 2D
Example0154 4Computational Mechanics, AAU, EsbjergANSYS
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Example - KeypointsPreprocessor > Modeling > Create > Keypoints > In Active CS
Enter 0,0,0Enter 0,1000,0Enter 300,1000,0Enter 1000,1000,0Enter 1000,0,0
Example0154 5Computational Mechanics, AAU, EsbjergANSYS
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Example - NumberingSwitch on Keypoint numbersUtility Menu > PlotCtrls > Numbering
Example0154 6Computational Mechanics, AAU, EsbjergANSYS
Press OK
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Example - LinesPreprocessor > Modeling > Create > Lines > Lines > Straight Line
Select KP1 and KP2
Example0154 7Computational Mechanics, AAU, EsbjergANSYS
HINT: By clicking with the right-hand mouse button you shift between the Pick/Unpick function. This is indicated by the direction of the cursor arrow:
Pick: upward arrow
Unpick: downward arrow
Press OK or Cancelto finish selection
Select KP2 and KP3
Select KP3 and KP4
Select KP4 and KP5
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Example – Modeling
Example0154 8Computational Mechanics, AAU, EsbjergANSYS
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Example – Element TypePreprocessor > Element Type > Add/Edit/Delete
Press Add
Example0154 9Computational Mechanics, AAU, EsbjergANSYS
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Example - Element TypePreprocessor > Element Type > Add/Edit/Delete
Press Options
Press Help to learn more about the element. Find the table on the nex page
Example0154 10Computational Mechanics, AAU, EsbjergANSYS
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Example - Element Type
Press Help to launchthe documentation forthis element type.
Notice the key option number for later use
Remember MFORX, SMISC,1,7
Example0154 11Computational Mechanics, AAU, EsbjergANSYS
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Example – Real ConstantsPreprocessor > Real Constants > Add
Place the cursoron the relevantelement andpress OK
Example0154 12Computational Mechanics, AAU, EsbjergANSYS
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Example - Real ConstantsPreprocessor > Real Constants > Add
Press OK
Press Closeto finish
Enter 1000Enter 208333
Enter 50
Example0154 13Computational Mechanics, AAU, EsbjergANSYS
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Example - Material PropertiesPreprocessor > Material Props > Material Models
Double Clickto step in thematerial tree
Example0154 14Computational Mechanics, AAU, EsbjergANSYS
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Example - Material Properties
Example0154 15Computational Mechanics, AAU, EsbjergANSYS
Preprocessor > Material Props > Material ModelsEnter 210000Modulus of elasticity
Enter 0.3Poisson’s ratio
Click hereto Close
Press OK
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Example – Mesh AttributesPreprocessor > Meshing > Mesh Attributes > Picked Lines
Select All Lines
Example0154 16Computational Mechanics, AAU, EsbjergANSYS Press OK
Press OK
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Example – Mesh sizePreprocessor > Meshing > Size Cntrls > ManualSize > Lines > Picked Lines
Example0154 17Computational Mechanics, AAU, EsbjergANSYS
Select Pick AllPress OK
Enter 5
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Example - MeshingPreprocessor > Meshing > Mesh > Lines
Select individual lines to be meshed by Picking
Example0154 18Computational Mechanics, AAU, EsbjergANSYS
Select all lines defined to be meshed
NB: It is often necessary to “Clear” the model forexample if Element Type is to be changed
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Example – Analysis TypeSolution > Analysis Type > New Analysis
Example0154 19Computational Mechanics, AAU, EsbjergANSYS
Press OK
Select Static
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Example – Define LoadsSolution > Define Loads > Apply > Structural > Displacement > On Keypoints
Select keypoint KP1 and KP5
Example0154 20Computational Mechanics, AAU, EsbjergANSYS
Press OK
Select UX and UY
Notice number
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Example – Define LoadsSolution > Define Loads > Apply > Structural > Force/Moment > On Keypoints
Example0154 21Computational Mechanics, AAU, EsbjergANSYS
Select keypoint KP3
Change to FY
Notice number
Press OK to finish Enter -10000
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Example - Save
Display of Analysis model
Save the model
Example0154 22Computational Mechanics, AAU, EsbjergANSYS
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Example – Write DB log fileFile > Write DB log fileEnter “example0154.lgw”
Example0154 23Computational Mechanics, AAU, EsbjergANSYS
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Example – Solve LSSolution > Solve > Current LS
Example0154 24Computational Mechanics, AAU, EsbjergANSYS
Press OK
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Example - Solution StatusPress Close
Press hereto Close
Example0154 25Computational Mechanics, AAU, EsbjergANSYS
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Example - PostProcessingGeneral Postproc > Plot Results > Deformed Shape
Select “Def+undeformed”and Press OK
Example0154 26Computational Mechanics, AAU, EsbjergANSYS
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Example - PostProcessing
Read Maximum displacement: DMX
Example0154 27Computational Mechanics, AAU, EsbjergANSYS
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Example – Element Table
Press Add to add the first data line
Example0154 28Computational Mechanics, AAU, EsbjergANSYS
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Example – Element Table
Scroll down in this menu to find the line “By sequence number”
Example0154 29Computational Mechanics, AAU, EsbjergANSYS
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Example – Element Table
Enter 1 as found in table 3.2
From table 3.2 MFORX, SMISC,1,7Press OK
Example0154 30Computational Mechanics, AAU, EsbjergANSYS
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Example – Element Table
Press Add to add the second data line
Example0154 31Computational Mechanics, AAU, EsbjergANSYS
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Example – Element Table
Enter 7 as found in table 3.2
From table 3.2 MFORX, SMISC,1,7Press OK
Example0154 32Computational Mechanics, AAU, EsbjergANSYS
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Example – Element Table
Press CloseExample0154 33
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Example – Plot Line-Element
Example0154 34Computational Mechanics, AAU, EsbjergANSYS
Change to SMIS7Press OK
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Example – Plot Line-Element
Example0154 35Computational Mechanics, AAU, EsbjergANSYS
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Example – Clear & Start New
Example0154 36Computational Mechanics, AAU, EsbjergANSYS
Clears (zeros out) the database stored in memory. Clearing the database has the same effect as leaving and reentering the ANSYS program, but does not require you to exit.
You can include commands to be executed when the program starts up in the start71.ans file.
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Example – Comments/Questions
• The “example0154.lgw” can be edited in “Notepad”
• Change the position of force?• Display the moment curves?• Will the number of elements affect the
solution?
Example0154 37Computational Mechanics, AAU, EsbjergANSYS