T_M_S
Automotive
- Dec 22, 2021
- 59
Good day everyone.
I would like to model "quasi-static" simulations in Simscape/multibody. I created a vehicle model. Works perfectly well in shaker rig type simulations but I would also like to apply lateral/longitudinal accelerations (using variable gravity/time varying option within mechanism configuration). I can't figure out how to properly constrain the wheels (to the "ground") so that the car doesn't slide away under lat/long acceleration loads. I tried using MF tire block and modify tire property file to get artificially high Mu (higher than applied acceleration) but car model is still sliding away. Interestingly enough the sum of four tire lateral forces (applying lateral acc load to the model) is close to overall mass of the model but still slightly lower i.e. not enough to constrain the car from sliding off. Trying to constrain the wheels via joints didn't work either. Other than having problems with "model not assembled", even if I manage to assemble it without errors it would crush when trying to run the simulation.
Any suggestions ideas would be highly appreciated.
Thank you.
Ted
I would like to model "quasi-static" simulations in Simscape/multibody. I created a vehicle model. Works perfectly well in shaker rig type simulations but I would also like to apply lateral/longitudinal accelerations (using variable gravity/time varying option within mechanism configuration). I can't figure out how to properly constrain the wheels (to the "ground") so that the car doesn't slide away under lat/long acceleration loads. I tried using MF tire block and modify tire property file to get artificially high Mu (higher than applied acceleration) but car model is still sliding away. Interestingly enough the sum of four tire lateral forces (applying lateral acc load to the model) is close to overall mass of the model but still slightly lower i.e. not enough to constrain the car from sliding off. Trying to constrain the wheels via joints didn't work either. Other than having problems with "model not assembled", even if I manage to assemble it without errors it would crush when trying to run the simulation.
Any suggestions ideas would be highly appreciated.
Thank you.
Ted