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Proposes a transient-rolling ALE method to evaluate tire dynamics in variable-speed conditions, indicating improved accuracy in tire performance assessment.
Growing demands for fuel economy, driving safety and ride comfort require accurate assessment of tire dynamics and rolling resistance evolution under variable-speed conditions. Conventional Arbitrary Lagrangian-Eulerian (ALE) methods, efficient for steady-state rolling, while fail in transient scenarios due to uniform motion assumptions. A transient-rolling ALE method is proposed by incorporating the guiding velocity and its time derivative into the momentum equation. Meanwhile, a novel rolling convective update algorithm is designed to handle the mesh nodal displacement field and the state variables. Numerical examples verify its accuracy, extending ALE applicability for transient tire performance evaluation.
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Wang et al. (2026) studied this question.
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