One common approach for reducing wheel sliding in quasi‑static simulations is to improve how the tire–ground interaction is modeled. The MF tire block may not be capturing enough frictional force under quasi‑static conditions, especially when using variable gravity to simulate lateral/longitudinal accelerations. You might try the following strategies:
– Instead of relying solely on increasing the friction coefficient in the MF tire block, consider using a more detailed tire–ground contact model (for example, one from the Vehicle Dynamics Blockset) that can enforce a no‑slip condition more effectively.
– Rather than modifying gravity to generate acceleration, apply external forces or motion inputs directly to the vehicle chassis. This approach can help maintain proper tire contact without inadvertently reducing the effective friction.
– Explore adding constraint blocks (such as a planar or no‑slip joint) to restrict wheel motion relative to the ground while still permitting wheel rotation. This method forces the tires to follow the ground trajectory and can help prevent sliding, though it may require careful tuning to avoid over‑constraining the model.
– Review your solver settings and simulation tolerances. For quasi‑static simulations, a slower solver with tighter tolerances may better capture the small differences in forces that are critical for maintaining wheel grip.
These adjustments should help you achieve a simulation where the tire forces are sufficient to counteract the applied lateral/longitudinal loads.
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