Difficulty in analyzing automotive tire in workbench

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SUMMARY

The discussion centers on analyzing the effects of pressure on automotive tires using ANSYS Workbench, specifically with the Mooney-Rivlin material model. Users encountered convergence issues when applying high internal pressures, initially set at 0.7 MPa, which were resolved by reducing the pressure to 0.06 psi. The conversation highlights the importance of using a non-linear solver, increasing substeps, and accurately modeling the tire's composite structure for successful simulations. Participants also discussed the necessity of applying realistic boundary conditions and load steps to achieve convergence in the analysis.

PREREQUISITES
  • Understanding of ANSYS Workbench for finite element analysis
  • Familiarity with Mooney-Rivlin material properties for rubber modeling
  • Knowledge of non-linear solvers and convergence criteria in simulations
  • Basic principles of tire mechanics and composite materials
NEXT STEPS
  • Research "ANSYS Workbench non-linear solver settings" for optimal configurations
  • Study "Mooney-Rivlin material model applications" for accurate rubber simulations
  • Learn about "load stepping techniques in finite element analysis" to improve convergence
  • Explore "tire mechanics literature" for advanced modeling techniques and best practices
USEFUL FOR

Engineers and researchers involved in automotive design, particularly those focusing on tire performance analysis, finite element modeling, and material behavior under pressure. This discussion is beneficial for anyone seeking to improve simulation accuracy and convergence in ANSYS Workbench.

  • #31
Well it depends on what conditions you want to analyze it under. You need to consider things like angular speed (centripetal acceleration), applied torque, and load it's supporting. You're going to have to decide how you want to approximate ground moving by as well.
 

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