Rigidly connected port error with Simscape Multibody Contact Forces Library
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Sebastian Castro
le 23 Jan 2018
Commenté : Ariel Chavez
le 12 Déc 2021
Adding blocks from the Simscape Multibody Contact Forces Library to a new model gives the following error message:
"External Force and Torque External_Force_and_Torque_PlaB has its follower port rigidly connected to the world frame; it has no effect. You can configure this diagnostic in the Simscape Multibody Configuration Parameters dialog."
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superman
le 9 Sep 2020
Dear, sir. I am doing biped walking simulation by Matlab2017b。 When i use four sphere to plane contact models on flat foot of the biped robot, the biped flied off the ground at the beginning of simulation, as shown in the attachment. The robot mass is 74 kg. The contact sphere radius is 0.01 m. The contact stiffness and damping are 90000 and 4000. Could you give me some advices? Thanks very much. I am looking forward to your reply.
Madhav rijal
le 17 Mar 2021
I have applied spatial connection force to sphere of the leg. I am not able to model thr ground. How do you do it. I have created a brick block and connected it to it.but Spatial Contact Force is not connected through its B port to a valid geometry. This error comes. How to solve it?
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Ramkumar Natarajan
le 5 Sep 2020
In the newer versions of Simulink, the setting is in Modeling > Model Settings instead of Simulation > Model Configuration Parameters
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