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Swinging damped pendulum system: parameters in body and damper

Posted 4 years ago

Hi All, I am complete newbie to Wolfram System Modeler and have not had any training on the system. Trying to figure it out as I go.

I need to do simulation of pendulum on Wolfram System modeler. Model includes world, revolute with rotational damper and body. Revolute rotating on z-axis's. I was able to add body mass, distance from revolute(length of string) and start angle to the requires parameters in the model. I have 2 uncertainties:

1) I am not sure where I need to add the inertia in the model under the body. When selecting body in model, it shows the inertia tensor. Under inertia tensor the are I11, I22,I33...... Under which I ... do I need the add the inertia? See attached.

2) The damping force coefficient is a given as 0.00142 kg/s. When selecting damper in the model the damping constant unit is in Nms/rad. How do I convert or calculate kg/s to Nms/rad or is there a way to change the Nms/rad unit? See attached.

If any addition info are required, please let me know.

Thank you in advance for replies

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POSTED BY: Tiaan Venter
2 Replies
POSTED BY: Sergio Vargas
Posted 4 years ago

Thanx for the info and help. Much appreciated.

POSTED BY: Tiaan Venter
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