Course in ANSYS. Example0303. ANSYS Computational Mechanics, AAU, Esbjerg

Transcription

1 Course in Example0303

2 Example Gear axle 3D Objective: Compute the maximum stress von Mise Tasks: How should this be modeled? Topics: Element type, Real constants, modeling, Plot results, output graphics, select entities E = N/mm 2 n = 0.3 T = 1000Nmm Example0303 2

3 Example Read Input from Browse to find shaft-3d.lgw Example0303 3

4 Example Read Input from Example0303 4

5 Example Create Areas by line Select All lines Press OK to finish Example0303 5

6 Example Create Areas by line Example0303 6

7 Example Element Type Preprocessor > Element Type > Add/Edit/Delete Press Add Example0303 7

8 Example Element Type Preprocessor > Element Type > Add/Edit/Delete Press Add Example0303 8

9 Example Real Constants No Real Constants are necessary for pure 3D solid models! Example0303 9

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

11 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

12 Example - Meshing Preprocessor > Meshing > Mesh > Areas > Mapped > 3 or 4 sided Select individual areas to be meshed NB: It is often necessary to Clear the model for example if Element Type or model geometry is to be changed Select all areas defined to be meshed Example

13 Example - Meshing Example

14 Example Extrude About Axis Select All Areas Select KP1 and KP10 Press OK Note: Bottom left corner of GUI Example

15 Example Extrude About Axis Example

16 Example Mouse rotate Rotate by holding the Ctrl key down while using the right hand mouse button Example

17 Example Volume Sweep Select All Example

18 Example 3D Mesh Example

19 Example Analysis Type File > Write DB log file Enter example0303.lgw Solution > Analysis Type > New Analysis Example

20 Example Select entities Change to Areas Select indicated areas (use isometric view) Example

21 Example Select entities Example

22 Example Select entities Change to Elements, Attached to, Areas, Sele All Press OK Example

23 Example Define Loads Solution > Define Loads > Apply > Structural > Force/Moment > On Nodes Note: If the model is remeshed all loads will be deleted with the element nodes Select indicated element node Press OK Example

24 Example Define Loads Solution > Define Loads > Apply > Structural > Force/Moment > On Nodes Change to FZ Press OK to finish Enter 22.2 Example

25 Example Define Loads Solution > Define Loads > Apply > Structural > Force/Moment > On Nodes Note: If the model is remeshed all loads will be deleted with the element nodes Select indicated element node Press OK Example

26 Example Define Loads Solution > Define Loads > Apply > Structural > Force/Moment > On Nodes Change to FZ Press OK to finish Enter -25 Example

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

28 Example Select entities Select Pick All Example

29 Example Select entities Select Pick All Example

30 Example Define Loads Solution > Define Loads > Apply > Structural > Displacement > On Areas Select All DOF to fix/clamp the axle Select Areas as indicated on the next page Press OK Example

31 Example Define Loads Example

32 Solution > Solve > Current LS Example - Solve Press OK Example

33 Example - Solve Press Close Press here to Close Example

34 Example - PostProcessing Select Def+undeformed and Press OK Example

35 Example - PostProcessing Read Maximum displacement: DMX Example