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Introduction to Tire Modeling |
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Introduction to Tire Modeling |
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Introduction to Tire Modeling |
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Introduction to Tire Modeling |
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Tires are critical elements to modeling a vehicle’s interaction with a road, with some tire models better suited to specific simulation domains. The domains are typically divided into the following categories:
| • | 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. |
MotionSolve and MotionView interface with the following tire models:
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CDTire |
FTire |
MF-Tyre |
MF-SWIFT |
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Author |
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Model type |
Pacejka, Rigid Ring, and Flexible Ring |
Flexible Ring |
Pacejka |
Rigid Ring with Pacejka |
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Application(s) |
Vehicle Dynamics Ride Durability |
Vehicle Dynamics Ride Durability |
Vehicle Dynamics |
Ride Comfort |
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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. |
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Installation |
Must install:
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Must install:
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No additional installation required. |
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. |
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Contact Type |
Bush Contact |
Bush Contact |
Point Follower |
Elliptical Cams |
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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) |
In addition, you can write your own tire and road models to extend MotionView and MotionSolve to meet your specific needs.
See Also:
Coordinate Systems and Output Requests
User Written Tire and Road Models