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Open sim
- 1. OpenSim 3.3 A Brief Tutorial
- 2. Scenarios 1&2 Scenario 1 • Gait 2392 model • No actuators added • Subject01-kinematics Scenario 2 • Gait 2392 model • 2 actuators added behind the knees between calf and hamstring • Subject01-kinematics
- 3. Scenario 2-marker adjustment • Step 1: Find gait2392.osim in files directory • Step2: Make a new copy of file called gait2392-subject02 • Step 3: Open using notepad ++ • Step 4: minimise submenus using alt+(submenu number) • Step 5: Locate marker set submenu • Step 6: Open both left toe tip and right toe tip. • Step 7: Correct marker position for incorrect marker
- 5. Scenario 2-add probeset • Step 1: Open probe submenu from the same model in notepad • Step 2: Copy probset script section from gait2392_simbody-subject- 09-timecontrol.osim model file. • Step 3: Paste into probe submenu in current .osim file.
- 6. Scenario 2-add Actuator • Step 1: Open force submenu from the same model .osim file in notepad • Step 2: Insert following code as a new force path actuator • Step2.5: Or alternatively copy the acuator set from gait2392_simbody-subject-09-timecontrol :P
- 9. 2-add probeset • Note: You can check individual bone axis in the model by right clicking on a bone in the navigation panel on the left and clicking display axis.
- 10. Scenario – 2 – Adding metabolics to CMC • Step 1: Open the file called “subject09_Setup_CMC” • Step 2: Navigate down to the following
- 13. Scenario 1-Inverse Kinematics • Step 1: Open Inverse Kinematics from the tools menu • Step 2: Load the file from the gate2392 directory "Subject 01 IK setup"
- 15. Scenario 1-Inverse Kinematics • Step 3: Check inputs and ammend any mistakes. If ammendments are made then save the file before running. Make sure output motion is named appropiately (subject02) • Step 4: Run the IK computation
- 16. Scenario RRA • Step 1: Open Reduce Residuals from the tools menu • Step 2: Load the file from the gate2392 directory "subject01_Setup_RRA“ • Step 3: Ammend Details to current subject02.osim file you are working on.change the following. • Desired kinematics- change to inverse kinematics ouptut file • Change name of adjust model name to anything suitable (subject02....) • Output file prefix and directory change to som ething useful. • Tick external loads • Edit the external load file to the following:
- 17. Your IK motion file
- 18. External force 1
- 19. External force 2
- 22. Scenario 2 - CMC • Step 1: Rename the output model from the RRA accordingly by right clicking the model in the navigation pane. • Step 2: Open the Computed Muscle Control in the tools menu. • Step 3: Load “subject01_Setup_CMC” • Step 4: Change the following to the appropriate files for your simulations so far: • Tick filter kinematics • Make sure actuators is set to “Append to model’s force set” • Make sure external loads is ticked and that you load the external loads file from the RRA simulation. Check the file contents making sure filter kinematics is ticked. • Change kinematics file to RRA output motion file.
- 23. Scenario 2 - CMC • Step 5: make sure the setup looks roughly like this:
- 24. Scenario 2 - CMC • Step 6: Save and then run the simulation!
- 25. Scenario 2 - Outputs • Files from the simulations are output into the specified directory during the tool setup. • You can open any of these files in notepad ++ • To make graphs use either: • In Opensim – tools -> Plot • Excel • Excel is recommended as control over the graphs is much better although a plot in opensim shows a line which moves when the animation is played, showing the stage of the gait cycle.
- 26. Plots • Step 1: Open plot in tools • Step 2: click Y quantity then select the file you want to analyse e.g. actuation force for subject 2 • Step 3: Tick the actuators you want to view on the graph • Step 4: Select x quantity and select time. • Step 5: Click add.
- 27. Voalá!
- 28. Just use Excel ;)