Gear Train MSC.ADAMS 2005 r2 GUI Familiarity Level Required: Low Estimated Time Required: 30 minutes MSC.ADAMS 2005 r2

Topics Covered In this tutorial you will learn how to: Import gear macro Create a Cylinder Create gear geometry Create revolute joint Create gear joints Add motion Simulate You will need to download “gear_macro.zip” to be able to complete this tutorial If you have any difficulties, import the “gear_train_shortcut1.cmd” file and proceed from pg 16 If you have any difficulties, import the “gear_train_shortcut2.cmd” file and proceed from pg 19 If you have any difficulties, import the “gear_train_complete.cmd” file and proceed from pg 23

Gear Train Problem Create a gear train. Which has a pinion gear rotating a gear, thus rotating the planet gear

What You Should Accomplish When you complete this tutorial you will have a gear train showing gears that mesh internally and externally.

Gear Macro Download the files “gear_mac.cmd” and “setup_gear_macro.cmd “ and save them into the same directory as ADAMS/View is installed a

Importing Macro Click Import a File radio button Click OK a b c Right-click File to Read text box. Choose Browse… d e Search you directory to find the folder you saved the macro. Click on “setup_gear_macro” Click Open f

Change Units Click Settings menu, then Units… The Units Settings window will appear Select Centimeter from the Length pull down menu Click OK b a c

Change Settings To edit the grid size: Click Settings menu, then Working Grid… The Working Grid Settings window will appear Change the Spacing text fields in X and Y to (10mm) Click OK a b c

Creating a Marker Click View menu, select Coordinate Window Select Marker from the tool stack Create a Marker at point (0,0,0) Create another marker at point (20,0,0) b c d a

Create Cylinder Select Cylinder from rigid Body tool stack Turn on Radius checkbox Enter (5.0cm) in Radius text field Click point (-5,0,0) Click point (-4,0,0) a d e b c

Rotate Cylinder Right click center of cylinder, select Marker: MARKER_3  Modify in Orientation text field enter 90.0, 0.0, 0.0 Click OK a b c

Create Gear Geometry Click Build menu, Select Create Gear Geometry Enter Marker_3 in Center Marker text field Enter ( 4.5 cm ) in Inner Radius text field Enter ( 5.5 cm ) in Outer Radius text field Enter 15 in Number Of Teeth text field Enter ( 2.0 cm ) in Thickness text field Enter pinion in Gear Name text field Click Ok b c d e f g h a

Add Revolute Joint Right-click on the Joint tool stack, select Joint: Revolute tool. Set the Construction option menu to 1 Location and Normal to Grid. Left-click on the marker PART_2.MARKER_1 at the center of the cylinder. A joint between the cylinder and the ground is created at that location. a c d b

Add a Motion Right-click motion tool stack, select Rotational Motion tool Enter (360d) in Speed text field Click on JOINT_1 a c b

Changing Appearance Right click on the gear, select Appearance from Cylinder:CYLINDER_1 menu Turn off the Off Visibility radio button Check your model Click on the Simulation tool Click Play button c b d a

Create Gear Create a second gear with radius of (10cm) at point (10,0,0) Create a revolute joint in the center

Create Gear Joint Right-click on joint tool stack, select Gear Joint Right click text field in Joint Name, select Joint Pick choose the revolute joint on the pinion (JOINT_1) Right click text field in Joint Name, select Joint Pick choose the revolute joint on the gear (JOINT_2) Right click text field in Common Velocity Marker, select Marker Pick choose ground MARKER_1 Click OK a c b d e

Revolving a Gear Joint Right click center of gear joint, select Marker:MARKER_1  Modify In Orientation text field enter 0.0, 90.0, 0.0 Click OK a b c Run simulation to test gear joint

Aligning Gears Right click center of gear joint, select Modify from –Marker:MARKER_3 menu in Orientation text field enter 82.0, 0.0, 0.0 Click OK a b c

Create Gear Create another gear of radius (20cm) at point (0,0,0) Enter these values:

Create Gear Joint Create another Gear Joint between the gear and the planet a Modify MARKER_2 Rotate 90 deg in Y-dir b c

Verify Right-click Information button, select Verify a The information screen will open up There should be 0 Degrees of Freedom and no redundant constraints Run a simulation to verify your model works properly

What You Should Accomplish When you complete this tutorial you will have a gear train showing gears that mesh internally and externally

Topics Covered In this tutorial you will learn how to: Import gear macro Create a Cylinder Create gear geometry Create revolute joint Create gear joints Add motion Simulate

Best Practices Make sure the units are correctly set. Make sure the revolute joint is in the correct direction. Check dimensions of your parts to make sure they are correct. Check orientation of the parts and joints to make sure it is correct. Make sure your model verification is successful Make sure the measures are set properly. Make sure the plot is displaying the correct set of results.