8. Creating a Measure on the Wheel_Travel
1) From the Build menu, point to Measure, point to Function, and then select New. The Function Builder dialog box appears.
2) In the Measure Name text box, enter the measure name as Wheel_Travel. Units select Length, then edit the function expression of Wheel_Travel with Function Builder.
The function expression of Wheel_Travel:
DY(.FRONT_SUSP.Wheel.MARKER_5, .FRONT_SUSP.ground.MARKER_6)
9. Creating curves on the Front Suspension characteristic
1) On the Review menu, select Postprocessing or press F8.
ADAMS/View launches ADAMS/PostProcessor (see Figure 4.5), a post-processing tool that lets you view the results of simulations you performed.
2) At the bottom left of the dashboard, set Source to Measures.
3) From the Simulation list, select test_dat.
4) At the bottom right of the dashboard, set Independent Axis to Data.
A browser, named Independent Axis Browser, appears. It lets you select data for the horizontal axis.
5) Select Kingpin_Inclination.
6) Select OK.
7) From the dashboard, from the Measure list, select Wheel_Travel, for the vertical axis data.
8) Select Add Curves to add the new data to the plot.
ADAMS displays the plot of the two measures as shown next:
Figure 4.8 The curve of Kingpin_Inclination vs Wheel_Travel
Figure 4.9 The curve of Caster_Angle vs Wheel_Travel
Figure 4.10 The curve of Front_Wheel Camber_Angle vs Wheel_Travel
Figure 4.11 The curve of Front_Wheel Toe_Angle vs Wheel_Travel
Figure 4.12 The curve of Sideways_Displacement vs Wheel_Travel
4.3 The Full Vehicle Design Problem
4.3.1 Creating Chassis Model
1. To start adams/View and Setting Up Your Work Environment
(1) To start ADAMS/View in the Windows environment
1) Select Start. start ADAMS/View, Select Create a new model from the Welcome dialog box.
2) Replace the contents of the Model name text box with JEEP.
3) Select OK.
(2) Setting Up Your Work Environment.
1) Setting up units: From the Settings menu, select Units. Set the units of length to Millimeter, the units of length to Kilogram, Force to Newton, Time to Second, Angle to Degree, Frequency to Hertz. Select OK.
2) Setting up Working Grid: From the Settings menu, select Working Grid. Set the grid size along X to 2000 and Y to 1000, and the grid spacing at 50. Select OK.
3) Setting up Icons: From the Settings menu, select Icons. In the New Size text box, enter 50. Select OK.
4) To display the Coordinates window: From the View menu, select Coordinate Window.
2. Creating Design Points
1) Right-click the Rigid Body tool stack (Link tool is on top by default) to display the tool stack containing the Point tool.
2) Select the Point tool , to create design point: Vehicle_CM (0, 600, 0), which are Add to Ground and Don’t Attach.
3. Creating Chassis
Select the Sphere tool , select New Part. In the Radius text box, enter 50. Click Vehicle_CM, to create a Cylinder. Rename the cylinder part, to Chassis.
Place the cursor over the part containing the geometry and hold down the right mouse button. Point to the name of the geometry that you want to modify and then select Modify. The Modify Body dialog box appears as shown next.
In the Category box, select Mass Properties. In the Define Mass By box, select User Input. In the Mass text box, enter 2010. In the Ixx, Iyy, Izz text box, enter 1.06E+009, 2.28E+009, 2.18E+009. Select OK.