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Free Fallen object simulation

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Pavel
Pavel on 11 May 2023
Commented: J Chen on 13 Jul 2023
Hello,
Which multibody blocks will contain the simplest model that simulates a cube (1m x 1m x 1m) falling 10m ?
Thanks

Answers (2)

J Chen
J Chen on 15 May 2023
You can use the Block Solid in the Body Elements. Also use the Transform Sensor in the Frames and Transforms to measure the translation and velocity. You also need the Mechanism Configuration block in the Utilities to specify the gravity.
  2 Comments
Pavel
Pavel on 2 Jun 2023
Hello,
Not sure if you saw my last comment.
Have you any idea on how to specify the ground ?
J Chen
J Chen on 13 Jul 2023
Put a Spatial Contact Force block between the ground and the object. Adjust the Max Step Size parameter in the solver to get correct result (ref to the attached model).

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Pavel
Pavel on 16 May 2023
Hello,
In the meantime I've found temporary solution: 2 solid blocks (1 for falling object, 1 for ground plan) and 6-DOF Joint (where I specify initial z-coordinate. It works. The problem now is how to correctly specify ground, because falling objetct falls through ground.
Thanks.

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