MotionView User's Guide

Introduction to Tire Modeling

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:

 

CDTire

FTire

MF-Tyre

MF-SWIFT

Author

Fraunhofer Institute

Cosin Scientific Software

TASS

TASS

Model type

Pacejka, Rigid Ring, and Flexible Ring

Flexible Ring

Pacejka

Rigid Ring with Pacejka

Application(s)

Vehicle Dynamics

Ride

Durability

Vehicle Dynamics

Ride

Durability

Vehicle Dynamics

Ride Comfort

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.

Installation

Must install:

-license server
-license

Must install:

-software
-license server
-license

No additional installation required.

Must install:

-license server
-license

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.

Contact Type

Bush Contact

Bush Contact

Point Follower

Elliptical Cams

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

CD-Tire Modeling

FTire Modeling

MF-SWIFT/MF-Tyre Modeling

User Written Tire and Road Models