Introduction to Tire Modeling
Tires are critical elements to modeling a vehicle’s interaction with a road, with some tire models better suited to specific simulation domains.
- Vehicle Dynamics: simulations run over smooth long-wave roads with low frequency inputs where the vehicle response to steering, brake and throttle input is of interest.
- Vehicle Ride Comfort: simulations run over non-smooth roads to assess the occupant comfort.
- Vehicle Durability: simulations run over rough roads to obtain the peak loads and/or load histories for use as inputs for predicting the fatigue life of vehicle components.
CDTIRE | FTIRE | MF-Tyre | MF-SWIFT | PM Flex Tire | |
---|---|---|---|---|---|
Author | Fraunhofer Institute | Cosin Scientific Software | TASS | TASS | Pratt Miller |
Model Type | Pacejka, Rigid Ring, and Flexible Ring | Flexible Ring | Pacejka | Rigid Ring with Pacejka | FE Model |
Application(s) | Vehicle Dynamics Ride Durability |
Vehicle Dynamics Ride Durability |
Vehicle Dynamics | Ride Comfort | Vehicle Dynamics Durability Tire on soft soil/DEM particles |
Licensing | Requires purchase of a license available from Altair or Fraunhofer Institute | Requires purchase of a license available from Altair or Cosin. | No additional purchase required, licensed with HyperWorks. | Requires purchase of a license available from Altair or TASS | Altair Units licensing |
Installation | Must install:
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Must install:
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No additional installation required. | Must install:
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Must install:
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Tire Data | Requires testing tires and fitting model parameters to data. | Requires testing tires and fitting model parameters to data. | Requires testing tire(s) and fitting model parameters to test data. Testing and fitting done by many parties including TASS. |
Requires testing tire(s) and fitting model coefficients to test
data. Testing and fitting done by many parties including TASS. |
Requires tire CAD, material properties |
Contact Type | Bush Contact | Bush Contact | Point Follower | Elliptical Cams | Spheres to Mesh |
Road Types | 2D Analytical and Stochastic Road 3D Curved Regular Grid (OpenCRG) 3D Master and Micro Patches |
2D Analytical and Stochastic Road 3D Curved Regular Grid (OpenCRG) 3D Regular Grid Road (RGR) |
2D Analytical Roads 3D Curved Regular Grid (OpenCRG) |
2D Analytical Roads 3D Curved Regular Grid (OpenCRG) |
EDEM Bulk Material |
In addition, you can write your own tire and road models to extend MotionView and MotionSolve to meet your specific needs.