RMOD-K Tire Modeling

RMOD-K tire is a series of mathematical tire and road models designed for predicting vehicle tire response and tire contribution to the overall vehicle response for a wide variety of operating conditions. The topics in this section serve as a companion document to the RMOD-K tire manuals. The RMOD-K model manuals, along with their compiled html help, are available through their website at http://www.rmod-k.com (after registering on the site).

Supported Tire Models

  • Rigid Belt Model (RFNRB)
  • Flexible Belt Model (DMRB)
Note: See the various manuals and online help available at http://www.rmod-k.com for descriptions of the tire models.

Available PDF Manuals

  • Rigid belt Model (RFNRB)-Detailed manual
  • Flexible Belt Model- Detailed manual

Available Online Help

The online help available via the RMOD-K website (http://www.rmod-k.com) is highly recommended, and contains the following:
  • Installation instructions for the software
  • Online help for the two tire models (Rigid Belt and Flexible Belt)
  • Documentation for the road surface model
  • Documentation describing the tire parameter fitting tool
  • Papers describing the tire fitting process

Available RMOD-K Utilities

A variety of utility programs are available to use with RMOD-K. These utilities include: routines that build and correlate the tire model to measured data, a utility that will generate both a parameterized and a measured surface road model, and a utility to view the tire simulation after the model has been run.

Creating Tire Models

The tire models are created by measuring a tire and going through a tire parameter identification process to create the model. The model building process requires the following information about the tire:
  • General Tire Information (size, inflation pressure)
  • Tire Topology Data
  • Tire Force and Moment Measurements
  • Tire Cleat Force Measurements
  • Modal Information about the Tire
  • Miscellaneous Additional Data

Road Surface Models

The RMOD-K package also allows you to incorporate two road surface models:
  • Parametric Object Model - The parametric object model road describes the initial road surface and then allows you to describe a series of parametric objects on the road. Parametric objects include a spherical calotte, a cuboid with an optional chamfer, a triangle, and a cylinder.
  • Scanned Road Surface - A point cloud , a wavefront file, and a variety of other files can be used to generate road surface models from measured data. Road surfaces can be measured using a road profilometer.

Click on the links below to learn more about the implementation of RMOD-K Tire in MotionView and MotionSolve: