Nonlinear passive elements in Simscape Multibody
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Hello,
I am working on a project which requires to model nonlinear spring and damper. I am using Simscape Multibody. Is there any way to connect nonlinear passive elements to cylindrical joint ? Or is there any other way at all ?
Thanks in advance
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Athul Prakash
2019-8-2
编辑：Athul Prakash
2019-8-2
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Hi Jakub,
I understand that you want to use a non-linear spring or damper in a multibody project.
There is no non-linear spring or damper in Simscape Multibody at this time, so here are a couple of things you can try:
1) Get it from Foundation Library and Interface it:
- Both non-linear spring and non-linear damper are available in Simscape > Foundation Library > Mechanical > Translational.
- These elements can’t be connected directly to Cylindrical Joint, you need to make an interface block in between.
- Refer to this Documentation page on how to interface between two domains:
- You can also find a similar example of interfacing in the Joint Limits and Friction Methods in a Hinge model (linked below), in the Simscape Multibody Multiphysics Library.
(I’m referring to method-1 of that example.)
2) Build a custom Simscape Block
- Simscape lets you make your own custom blocks for such cases. The Documentation page linked below can guide you in doing so:
Good Luck.
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