ANSYS Workbench tire/pavement interaction

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SUMMARY

The forum discussion centers on a transient analysis simulation in ANSYS Workbench involving a truck tire on a flexible pavement surface. The user reports observing tire inflation and structural failure when velocities are included, but no inflation or deflection occurs when only tire pressure and vertical load are applied. This discrepancy raises questions about the simulation setup and the interaction between tire dynamics and pavement response.

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  • Understanding of ANSYS Workbench simulation environment
  • Knowledge of transient analysis in finite element modeling
  • Familiarity with tire mechanics and structural failure concepts
  • Basic principles of flexible pavement behavior under load
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  • Investigate the impact of boundary conditions in ANSYS Workbench simulations
  • Learn about tire pressure effects on structural integrity in simulations
  • Explore the role of velocity suppression in transient analysis
  • Review best practices for modeling flexible pavement interactions in ANSYS
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Engineers and researchers involved in tire and pavement interaction studies, simulation specialists using ANSYS Workbench, and professionals focused on vehicle dynamics and structural analysis.

Danito
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I am trying to run a simulation (transient analysis) in ANSYS Workbench of a rolling tire on a flexible pavement surface. The tire is a truck tire with pressure of 0.7 MPa.

I defined various outputs at consequential small time steps, and I can see the tire gradually inflating until (what seems like) it fails structurally.

However, when I suppress the (linear and rotational) velocities of the tire and leave only the tire pressure and the vertical load on the tire (1/4 of vehicle weight), there is no visible inflation (or structural failure) and no visible deflection of the tire under the vertical load.

This doesn't make sense...
Does anyone have any ideas what the problem may be?

Thank you!
 
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What do you mean by "inflating" in this context?
 

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