Free Fallen object simulation

Question

Pavel 2023-5-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1961759-free-fallen-object-simulation

评论： J Chen 2023-7-13

Hello,

Which multibody blocks will contain the simplest model that simulates a cube (1m x 1m x 1m) falling 10m ?

Thanks

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

J Chen 2023-5-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1961759-free-fallen-object-simulation#answer_1235864

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 个评论
显示无隐藏无

Pavel 2023-6-2

Hello,

Not sure if you saw my last comment.

Have you any idea on how to specify the ground ?

J Chen 2023-7-13

bouncingBall.slx

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).

请先登录，再进行评论。

Answer 2

Pavel 2023-5-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1961759-free-fallen-object-simulation#answer_1236704

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.