How avoid object bouncing and vibration?

asked 2021-09-28 10:03:24 -0600

mrVico gravatar image


I'm loading a random population of several very small objects, which is collision element is parameterized as a box. But when they fall in the ground, they start vibrating for a long period of time. The objects have a approx size of 22.3x8.6x15.9 mm and a mass of 0.00158 kg.

The behaviour I want to model is for them to stop as soon as posible when they touch the ground, as there not made of a bouncing material but rigid material.

As i would like a fast simulation, Is there a way to do that without decreasing the max_step_size?. Are there any model parameters should I change to avoid the desired behaviour?

Best Regards

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hello, you could try to increase the object mass, and can try tuning the parameters in collision->contacts->ode in the sdf

Clément Rolinat gravatar imageClément Rolinat ( 2021-10-01 10:31:54 -0600 )edit

Thank you clément, Which parameters exactly do you advise me to change?

mrVico gravatar imagemrVico ( 2021-11-04 07:48:06 -0600 )edit

hello, in collision->surface->contact->ode, you can try increasing min_depth and decreasing max_vel. Find here a tutorial on different simulation parameter that may be useful to fix your issue: link

Clément Rolinat gravatar imageClément Rolinat ( 2021-11-09 10:06:11 -0600 )edit