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Error with Articulated four-joints

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Alexander Quarterblad
Alexander Quarterblad on 24 May 2019
Closed: MATLAB Answer Bot on 20 Aug 2021 at 18:31
I need to build this mechanism:
scheme.png
So i create this scheme (removed the initial angle to simplify)
1.png
But I get an error
2.png
If i disconnect Revolute C from Groud 1 it works and I get the animation with the right movement along the axes.
an.png
So i need somehow to lock the end bode BC.
The settings of Revolute C, Body BC and Ground1 below:
revolute.png
ground.png
body.png

Answers (1)

Steve Miller
Steve Miller on 25 Jun 2021
Hi Alexander,
The model you have shown above is built using Simscape Multibody 1G technology. You could get it to work if you set the initial angle of all your joints to exactly match the configuration from your sketch. You have calculated one angle, you need to calculate the rest...
HOWEVER, I strongly recommend you try using the current version of Simscape Multibody and the newer technology. There, you only have to connect the parts, specify the one angle you know, and Simscape Multibody will figure out the rest of the angles for you. See this tutorial for an example.
--Steve

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