MV-8500: Use the Truck Library

In this tutorial, you will build a full truck model with a driver, add events to the model, and view the reports.

The purpose of this tutorial is to walk you through the process of how to build a full truck model with advanced drivers and how to add events to the model built.

The new event user interface is supported only for models with advanced drivers. Files can be edited or updated in the event editor. Sixteen event types are supported. To learn more about the events, see the Full vehicle with Advanced Drivers topic.

Select Model Type

In this step, you will load the MBD-Vehicle Dynamics Tools preference file and select a model type using the Set wizard library dialog.

In MotionView, models are assembled from libraries of pre-defined systems using the Assembly Wizard. The Assembly Wizard dialog guides you through the assembly process, ensuring that your selections are compatible.

Start a new MotionView session.

Figure 1.
From the menu bar, click File > Load > Preference File to open the Preferences dialog.

Figure 2.
Select MBD-Vehicle Dynamics Tools and click Load.

Figure 3.
Set the required truck wizard paths using the Assembly Wizard dialog.
1. From the menu bar, click Model > Set Wizard Paths.
  
  Figure 4.
  
  The Set wizard library dialog opens.
2. From the Wizard library drop-down menu, select Heavy Truck.
  
  Figure 5.
3. Browse and locate the required paths from the installation folder and click OK.
From the menu bar, select Model > Assembly Wizard.

Figure 6.

The Heavy truck - Model Type dialog opens.

Figure 7.

Build a Full Truck Model with Driver

In this step, you will build a a full truck model with a driver using the Heavy truck - Model Type dialog.

In MotionView, truck models are assembled from libraries of pre-defined systems using the Heavy Truck library. It guides you through the assembly process, ensuring that your selections are compatible. The Full truck with driver model type builds the model with steering, front suspension, rear suspension, powertrain, driveline, and driver signal generator.

From the Heavy truck - Model Type dialog, select Full truck with driver and click Next.
Select the bodies.
1. From the Truck body drop-down menu, select Body.
2. From the Cabin body drop-down menu, select Cab.
3. Click Next.
Figure 8.
Select the primary systems.
1. From the Rear suspension drop-down menu, select Rear dual solid axle suspension.
2. From the Powertrain drop-down menu, select Linear Torque Map Powertrain.
3. From the Signal Generator drop-down menu, select Driver Signal Generator.
4. Click Next.
Figure 9.
Select steering systems.
1. From the Steering linkages drop-down menu, select Pitman Arm Steering.
2. From the Steering column drop-down menu, select Steering column.
3. From the Steering boost drop-down menu, select Steering boost.
4. Click Next.
Figure 10.
Select springs and stabars.
1. From the Front spring drop-down menu, select Leaf springs.
2. From the Rear spring drop-down menu, select Bell crank linked leaf spring.
3. Click Next.
Note: Based on the suspension type selected for the Front suspension and Rear suspension, the Front spring and Rear spring options are modified accordingly.

Figure 11.
Select shock absorbers.
1. From the Front shocks drop-down menu, select Front shock absorber (with inline jts).
2. From the Rear shocks drop-down menu, select Rear shock absorbers (with inline jts).
3. Click Next.
Figure 12.
Select jounce and rebound bumpers.
1. From the Front jounce bumpers drop-down menu, select Front external jounce bumpers.
2. From the Front rebound bumpers drop-down menu, select Front external reb bumpers.
3. From the Rear jounce bumpers drop-down menu, select Rear external jounce bumpers.
4. From the Rear rebound bumpers drop-down menu, select Rear external reb bumpers.
5. Click Next.
Figure 13.
Select driveline systems.
1. From the Disk Brakes drop-down menu, select Disc Brakes.
2. From the Rear driveline drop-down menu, select Two-axle driveline.
  
  Note: Based on the suspension type selected, the Rear driveline options are modified accordingly.
3. Click Next.
Figure 14.
Select driveshaft systems.
1. From the Rear driveshaft drop-down menu, select Pear Driveshaft 1-piece.
2. From the Auxiliary driveshaft drop-down menu, select Secondary driveshaft.
3. Click Next.
Figure 15.
Enter a Driver system.
1. From the Driver system drop-down menu, select Altair Driver.
2. Click Next.
Figure 16.
Click Finish to complete the process and exit the custom library wizard.

Figure 17.

The full truck with driver model is displayed in the modeling window.

Figure 18.

The subsystems that you have selected in the Custom library wizard to build the model are displayed in the Project Browser.

Figure 19.

Add Events to the Model

In this step, you will add events to the model you built in Build a Full Truck Model with Driver.

The following steps outline how to add an event to the previously built model. Currently, sixteen event types are available in the advanced driver models:

Constant Radius
Single Lane Change
Double Lane Change
Swept Sine
Straight Line Acceleration
Straight Line Braking
Sinusoidal Steering
BrakeIn Turn
J Turn
Throttle off cornering
Swept Steer
Pulse Steer
Throttle off TurnIn
Step Steer
Power off ln Straight Line
Altair Driver File

Each event type has different options that needs to be addressed. For example, in the following steps Constant Radius is explained.

From the Project Browser, right-click Model and select Add Events frp, the context menu.

Figure 20.

The Add Scripted Driver Task dialog opens.
From the Type drop-down menu, select the Constant Radius event and click OK.

Figure 21.

The Constant Radius event is added to the Project Browser and the Event Editor is displayed in the panel area.

Figure 22.

Figure 23.
Open the Event Editor dialog by completing one of the following:
- From the Project Browser, right-click on the event type and select Event Editor from the context menu.
- From the panel area, click the Event Editor button.
The Constant Radius event's parameter is displayed.
Enter the necessary information in the Constant Radius event's parameter.
1. For Radius [m], enter 40.
2. For Initial straight [m], enter 20.
3. From the Turn direction drop-down menu, select Left.
4. For Initial velocity [m/s], enter 5.
5. For Final velocity [m/s], enter 12.
6. For Time in circular track [s], enter 10.
7. For Initial lateral acc [g's], enter 0.064.
8. For Final lateral acc [g's], enter 0.367.
9. For Look ahead time [s], enter 0.5.
10. For Prediction step size, enter 0.01.
11. For Print interval [s], enter 0.05.
12. From the Output XML File, browse and select the file path.
Figure 24.
Click the Run button.
An ADF (Altair Driver File) is generated with all the event parameters at the XML file path (Output XML File) location. The model is exported and MotionSolve starts to generate the result files. HyperWorks MotionSolve is invoked in the background.

Figure 25.

Note: The generated file types include: .adf, .plt, and .h3d files.
Once the MotionSolve run is complete, close the window and return to the MotionView interface.

View the Reports

In this step, you will view the reports using the View Reports wizard.

Report templates are a series of pre-defined plots that apply the standard set of plots required for an event. A report template generates all of the plots and properly labels them.

From the menu bar, click Analysis > View Reports.

Figure 26.

The View Reports wizard is displayed.
From the View Reports window, select Driver Output Report and click OK.

Figure 27.

A series of report templates are displayed in the Plot Browser.
You can select the required report template to view in detail.

Figure 28.