Propeller

This simulation tutorial will guide you through:

• Applying a torque load to a propeller blade
• Adding a parameter to a material
• Running a simulation
• Viewing the stress in the simulation results 

 Import the CAD file

1. In OnScale Solve, from the Projects tab of the dashboard, create a new project.
2. In the ToolBar, click (+) and then Library. Within the OnScale Library,  Select Propeller.

Assign a material 

1. Using either the Model tree or the 3D viewer, select the Propeller.
2. From the Material dropdown in the properties panel, select Aluminum.
3. Click on the pencil to edit its properties.
4. Under Mechanical properties, click the  symbol in the Young’s Modulus dialog box to allocate a parameter.
5. Set the Start Value to 60e9, End Value to 70e9 and Number of Values to 5.
6. Under Thermal properties, click the  symbol in the Thermal Conductivity dialog box to allocate a parameter.
7. Set the Start Value to 160, End Value to 240 and Number of Values to 10.
8. Click Done to save changes. 

Add a fixture

1. Select the tab.
2. In the toolbar, ensure that the Mechanical Physics tab is on.
3. Select Restraint as the constraint to fix the appropriate surfaces for the study.
4. Using either the tree or the 3D viewer, select the Inner hub. 
5. Ensure that the restraint type restrains the x, y, and z axis (in other words, is a  fixture) in the right hand panel.
6. Select Done in the right hand panel.

Add a Torque load

1. Select Torque in the toolbar to add a force load.
2. Using either the Model tree or the 3D viewer, select the Second Blade Face and Second Blade Back for the load assignment.
3. In the properties panel, enter 1000 Nm as the Torque.
4. Switch to coordinate mode to reorient the Torque
5. In the Axis of Rotation dialog box, enter 0 for the x-orientation, 1 for the y-orientation, and 0 for the z-orientation.
6. Click Done to save changes.

Run a simulation 

1. Select the Simulator tab.
2. Click on the Launcher to run the simulation.
3. Once the meshing and estimation is complete, Select Launch to run the simulation study.
4. You should have 50 simulations run in parallel. Can you guess why?

Analyze the results

1. Once the simulation has finished, select Load Results to open the results in the Results tab.
2. Expand the Settings option and toggle Show Mesh on.
3. Attempt to filter the results by clicking on Sensors.
4. Click Filter results.
5. Click on the + to filter results for Parameter 1. Filter values equal to 6.75e10 Pa using the slider.
6. Select Save.
7. Click on the + to filter results for Parameter 2. Filter values Less than 186.667 W/(m*K).
8. Select Save.
9. Close the Filter box.
10. Click Global Sensor.
11. There is a wide range of output categories to choose from. Select the xx component of the Stress from the output datasets.
12. What are the maximum stress values for the three filtered results?