How to create custom road and events in Altair?
I need to perform a simulation for a rough road, uphill, and downhill roads with two wheeler vehicle.
I found this post in the community, however the resource file is corrupted. How do I create my own custom road and events like this?
https://community.altair.com/discussion/36772/two-and-three-wheeler-vehicle-dynamics-and-durability-in-motionsolve?__cf_chl_tk=fo4vOHT0Wg1KdFw3vLSBRrSEcKElnNGTQa8XyZvP0qo-1736989099-1.0.1.1-YnpohUQnt00XzfbpgjZ_NYdDw9Y_jFwqNsd1kYkE3jQ
Thank you!
Best Answer
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Hi @sudo,
To complete this task, there are 2 steps to complete:
- Create the road file
- Create the event
First, the road file (RDF) can be created by copying any number of road files the from the installation directory (C:\Program Files\Altair\2024.1\hwdesktop\hw\mdl\autoentities\properties\Tires\ALTAIR_ROADS) and modifying the file as needed. You could use any of the 3D spline roads (3D_Spline_sine_obs.rdf) or 2D polyline roads (2D_poly_line_Sine.rdf) and overwrite the X, Y, Z coordinates to replicate your ideal road.
For more on road files, please use the following link:
Secondly, the you simply need to create a Road Course event and assign the new road file to the event. You can also set a steady speed or follow a speed profile. If your road is curved, you can also set the steering method from Straight Line to Road Centerline.
For more on the road course event, use the following link:
Along with our Introduction to MotionView/MotionSolve eLearning course, Altair also offers a specialized multi-body dynamics (MBD) course for vehicle modeling, called MotionSolve for Vehicle Modeling eLearning. This class introduces the application of MotionSolve for vehicle modeling applications, such as assembly of half or full car models, vehicle event creation, generating event reports, modifying vehicle subsystems, and preliminary verification methods. So if you are looking to learn the basics of event creation and vehicle definition, I would recommend you complete it.
You can find it at the following link:
Hope this helps!
Adam Reid
2
Altair EmployeeAnswers
-
Hi @sudo,
To complete this task, there are 2 steps to complete:
- Create the road file
- Create the event
First, the road file (RDF) can be created by copying any number of road files the from the installation directory (C:\Program Files\Altair\2024.1\hwdesktop\hw\mdl\autoentities\properties\Tires\ALTAIR_ROADS) and modifying the file as needed. You could use any of the 3D spline roads (3D_Spline_sine_obs.rdf) or 2D polyline roads (2D_poly_line_Sine.rdf) and overwrite the X, Y, Z coordinates to replicate your ideal road.
For more on road files, please use the following link:
Secondly, the you simply need to create a Road Course event and assign the new road file to the event. You can also set a steady speed or follow a speed profile. If your road is curved, you can also set the steering method from Straight Line to Road Centerline.
For more on the road course event, use the following link:
Along with our Introduction to MotionView/MotionSolve eLearning course, Altair also offers a specialized multi-body dynamics (MBD) course for vehicle modeling, called MotionSolve for Vehicle Modeling eLearning. This class introduces the application of MotionSolve for vehicle modeling applications, such as assembly of half or full car models, vehicle event creation, generating event reports, modifying vehicle subsystems, and preliminary verification methods. So if you are looking to learn the basics of event creation and vehicle definition, I would recommend you complete it.
You can find it at the following link:
Hope this helps!
Adam Reid
2