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Moving Edge Load

Posted Jul 7, 2019, 2:05 a.m. EDT Structural & Acoustics, General, Structural Mechanics 2 Replies

Aswin P
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Was trying to simulate an edge load (line load) which moves down through the surface of a vertical plate. Was checking out multiple examples with moving point source and all, confused in moving a line source . How to proceed. Thanks in advance

2 Replies Last Post Jul 8, 2019, 5:50 a.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 5 years ago Jul 8, 2019, 2:58 a.m. EDT
Updated: 5 years ago Jul 8, 2019, 2:58 a.m. EDT

Hi Aswin,

This is an interesting question, and it is not trivial to do this. You need to make use of some of rather advanced modeling techiques, but the possibility to let a line load slide over the mesh using only a few mouse clicks really displays the flexibility of COMSOL Multiphysics.

I have attached a model. The important ingredients are the General Extrusion coupling operator which maps the solution from an arbitrary line to a fixed line, and the Weak Contribution node in which the load is applied at the fixed line, but using the diplacements of the moving line.

Regards,
Henrik

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Henrik Sönnerlind
COMSOL
Hi Aswin, This is an interesting question, and it is not trivial to do this. You need to make use of some of rather advanced modeling techiques, but the possibility to let a line load slide over the mesh using only a few mouse clicks really displays the flexibility of COMSOL Multiphysics. I have attached a model. The important ingredients are the **General Extrusion** coupling operator which maps the solution from an arbitrary line to a fixed line, and the **Weak Contribution** node in which the load is applied at the fixed line, but using the diplacements of the moving line. Regards, Henrik

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Aswin P
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Posted: 5 years ago Jul 8, 2019, 5:50 a.m. EDT
Updated: 5 years ago Jul 8, 2019, 5:49 a.m. EDT

Dear Henrik,

Thank you for the reply. Let me try .

Dear Henrik, Thank you for the reply. Let me try .

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