6c. Algor Section
Structural Simulation using Algor
Section structure_Gatti Wool Factory
1 Importing model
In order to do ‘solid meshing’ in Algor, we need to join the surfaces in Rhino to make an enclosed object.
Save the file as .step file.
Open the .step file in Algor. Click ‘Options’ and change to ‘Units’ page. Select ‘Millimeter’. Press ‘OK’ and ‘Open’
Press ‘OK’ with ‘static stress with linear material model’.
Please refer to report of surface structure.
Click ‘Mesh’ in the menu bar. Select ‘Model Mesh Settings’. Select ‘Select’ and adjust the Mesh Size.
Click ‘Mesh Model’
Scene after meshing model
4 Element Definition
No need to enter the thickness of the model, if it is the case of solid model analysis
Highlighting the parts in the Tree view.
Right click in the display area and select ‘modify’ and ‘material’
Select ‘Concrete (High Strength)’ on the left hand column. By selecting ‘Create New Library’, you can also define a new material.
6 Boundary condition
Change the elevation view using the view icons in the toolbar. Using the point selection tool and holding down ‘ctrl’ key to select all surfaces at the bottom of the columns.
Right click in the display area and select ‘Add’ and ‘Sufaces boundary conditions’
Select ‘Fixed’ and press’ OK’
Using ‘point select’ to select the surfaces which will receive wind load.
Right click in the display area and select ‘Add’ and ‘Surface Variable Loads’.
Set the loading on the roof (z-direction -1) and the amount of loading (0.007 N/sq mm). Rename the active function as shown below. Press ‘OK’
The surface applied loading will be highlighted.
To add the gravity load, double click ‘Analysis Type’ in the tree view. Make sure that ‘Accel/Gravity’ under ‘Multipliers’ is set to ‘1’
Click ‘Gravity/Acceleration’ and ‘Set for standard gravity to set the gravity load. Press ‘OK’
Click the icon of ‘Perform analysis’ to start analyzing the model
Wait until the analysis is completed
While the analysis is completed, different results can be shown by selecting ‘deformed Shape’, ‘Displacement’, ‘Strain’ or ‘Stress’ on the tree view.
Select ‘Result Options’ in the menu bar and then ‘Displaces Model Options’. The scale of the deformation can be multiplied by the scale factor.
If we select ‘As a Absolute Value’ and enter ‘1’ in the Scale Factor, the model would show with a actual scale of deformation.
By turning on ‘Maximum Result Probe’ and ‘Minimum Result Probe’ in the tool bar, the location with maximum or minimum displacement, stress, strain will be shown in the model.
We can start the animation by selecting ‘Animation’ in Menu bar and click ‘Start Animation’.
All Right Reserved © NUS 2008-2010