How to define Contact force in Simscape Multibody
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Dear Mathworks Community
I am trying to define a contact force between a flexible body (CAD model of a human torso imported from Solidworks to Simscape) and a solid body (solid ring imported from Solidworks). The flexible body was created using Reduced-Order Flexible Solid block in Simscape Multibody and the redoced order data was obtained by running a MATLAB scripts to do FEM analysis and compute Mass, Stiffness and Damping matrices of the flexible torso model. The shape of the bodies is in the attached file.
The question is that which block (spatial contact force or using Simscape Multibody Contact Force Library) is the best solution to define contact force in thsi specific problem? If these do not support this contact, then what other solutions exist?
Thank you in advance.
best regards,
Farhad
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Steve Miller
il 26 Nov 2022
I think your best option is to add interface frames to your flexible body at distributed locations, attach Point geometry at those locations (or massless solids if you think you can approximate the surface even as it deforms), and use Spatial Contact Force blocks to model the contact between those proxy geometrys and the rigid body.
--Steve
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