Simulation of Tires Using Ansys

Tires are an essential component for all types of vehicles. It is important to understand how tires perform under different speeds, loads and operating conditions. Ansys offers a depth of capabilities to perform comprehensive tire simulations including mounting, inflation, loading, footprint, and steady state rolling.

The team at Ozen Engineering offers customers deep technical experience in tire simulation to achieve accurate modeling results quickly.

Typical Tire Simulation Steps

For any tire simulation, there are different essential steps that must be performed to achieve a fully detailed analysis.

These steps are:

Mounting

In Mounting, contact between the tire and rim is activated. This contact is usually modeled as frictional

Inflation

In inflation, the inner surfaces of the tire are selected, and the inflation pressure is applied to these surfaces.

Ground Contact

In ground contact, the tire is fixed and the road is moved up till it is in contact with the tire. This contact is usually modeled as rough contact.

Full Load

In full load, the vertical load is applied. This load is equivalent to quarter of the vehicle weight.

Footprint Analysis

In footprint analysis, the contact pressure and contact status results are obtained.

Steady State Rolling

In steady state rolling, SSTATE command is used to apply the steady state rolling analysis.

Tire Simulation Using Ansys

Ansys allows the engineers to perform a detailed tire analysis in a straightforward way.

Geometry and Materials

A detailed 2D cross section is all that is needed to start a detailed 3D tire simulation. All parts of the tire will be modeled in detail and a suitable material will be assigned to each part. Using the ANSYS material library, you can use/define different materials including linear and nonlinear properties.

Simulation Setup
  • Tire simulation is performed in the intuitive Ansys Workbench user interface to setup the mesh, contact conditions, and analysis settings.
  • Boundary conditions include inflation pressure, weight load, friction coefficient, speed, and more.
  • ANSYS offers tools to include compute-efficient steel reinforcement for belts and plys.
Results

ANSYS tire simulation provides various results of interest, including: tire deformation, footprint contact pressure, stress and strain at every step of the simulation.

Tire Simulation Using CFD and Rigid-Flexible Dynamics

With Ansys, you are not only limited to mechanical structural analysis when you are trying to simulate the tires, but you can also perform detailed AeroAcoustic  analysis using Ansys/CFD. With both tools, a coupled Fluid Structure Interaction (FSI) analysis could be done as well.

Another analysis that could be performed is rigid-flexible dynamics. Ansys/Motion is a tool that helps to study and simulate the dynamics of the vehicle and the effect f the vehicle different components (flexible and/or rigid) on the tire performance.

Contact us to learn more or to schedule a demonstration.