Course in ANSYS. Example0154. ANSYS Computational Mechanics, AAU, Esbjerg

Transcription

1 Course in Example0154

2 Example Frame 2D E = N/mm 2 n = 0.3 L= 1000mm H = 1000mm a = 20mm b = 50mm c = 400mm F = 10000N I = N/mm 4 Example0154 2

3 Example Frame 2D Objective: 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 3

4 Example - title Utility Menu > File > Change Jobname /jobname, Example0154 GUI Command line entry Enter: Example0154 Utility Menu > File > Change Title /title, Frame 2D Enter: Frame 2D Example0154 4

5 Example - Keypoints Preprocessor > Modeling > Create > Keypoints > In Active CS Enter 0,0,0 Enter 0,1000,0 Enter 300,1000,0 Enter 1000,1000,0 Enter 1000,0,0 Example0154 5

6 Example - Numbering Utility Menu > PlotCtrls > Numbering Switch on Keypoint numbers Press OK Example0154 6

7 Example - Lines Preprocessor > Modeling > Create > Lines > Lines > Straight Line Select KP1 and KP2 Select KP2 and KP3 Select KP3 and KP4 Select KP4 and KP5 HINT: By clicking with the righthand 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 Cancel to finish selection Example0154 7

8 Example Modeling Example0154 8

9 Example Element Type Preprocessor > Element Type > Add/Edit/Delete Press Add Example0154 9

10 Example - Element Type Preprocessor > Element Type > Add/Edit/Delete Press Options Press Help to learn more about the element. Find the table on the nex page Example

11 Example - Element Type Notice the key option number for later use Remember MFORX, SMISC,1,7 Press Help to launch the documentation for this element type. Example

12 Example Real Constants Preprocessor > Real Constants > Add Place the cursor on the relevant element and press OK Example

13 Example - Real Constants Preprocessor > Real Constants > Add Enter 1000 Enter Enter 50 Press OK Press Close to finish Example

14 Example - Material Properties Preprocessor > Material Props > Material Models Double Click to step in the material tree Example

15 Example - Material Properties Preprocessor > Material Props > Material Models Enter Modulus of elasticity Enter 0.3 Poisson s ratio Click here to Close Press OK Example

16 Example Mesh Attributes Preprocessor > Meshing > Mesh Attributes > Picked Lines Select All Lines Press OK Press OK Example

17 Example Mesh size Preprocessor > Meshing > Size Cntrls > ManualSize > Lines > Picked Lines Enter 5 Select Pick All Press OK Example

18 Example - Meshing Preprocessor > Meshing > Mesh > Lines Select individual lines to be meshed by Picking NB: It is often necessary to Clear the model for example if Element Type is to be changed Select all lines defined to be meshed Example

19 Example Analysis Type Solution > Analysis Type > New Analysis Select Static Press OK Example

20 Example Define Loads Solution > Define Loads > Apply > Structural > Displacement > On Keypoints Select keypoint KP1 and KP5 Select UX and UY Notice number Press OK Example

21 Example Define Loads Solution > Define Loads > Apply > Structural > Force/Moment > On Keypoints Select keypoint KP3 Notice number Change to FY Press OK to finish Enter Example

22 Example - Save Display of Analysis model Save the model Example

23 Example Write DB log file File > Write DB log file Enter example0154.lgw Example

24 Example Solve LS Solution > Solve > Current LS Press OK Example

25 Example - Solution Status Press Close Press here to Close Example

26 Example - PostProcessing General Postproc > Plot Results > Deformed Shape Select Def+undeformed and Press OK Example

27 Example - PostProcessing Read Maximum displacement: DMX Example

28 Example Element Table Press Add to add the first data line Example

29 Example Element Table Scroll down in this menu to find the line By sequence number Example

30 Example Element Table Press OK Enter 1 as found in table 3.2 From table 3.2 MFORX, SMISC,1,7 Example

31 Example Element Table Press Add to add the second data line Example

32 Example Element Table Press OK Enter 7 as found in table 3.2 From table 3.2 MFORX, SMISC,1,7 Example

33 Example Element Table Press Close Example

34 Example Plot Line-Element Press OK Change to SMIS7 Example

35 Example Plot Line-Element Example

36 Example Clear & Start New You can include commands to be executed when the program starts up in the start71.ans file. Clears (zeros out) the database stored in memory. Clearing the database has the same effect as leaving and reentering the program, but does not require you to exit. Example

37 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? Example