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Apply a point load on an arbitrary point?

Posted 10 janv. 2019, 02:45 UTC−5 Structural & Acoustics, Acoustics & Vibrations Version 5.3a 1 Reply

Dongdong Zhang
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I am a new in Comsol. Now i want to compute frequency response of a composite plate under a point load. i want to define the load on the arbitrary point. So i defined a point at geometry node, but it showd not applicable when the load is defined. So how to define a load on an arbitrary point? Thank you !

1 Reply Last Post 10 janv. 2019, 07:33 UTC−5
Henrik Sönnerlind COMSOL Employee

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Posted: 6 years ago 10 janv. 2019, 07:33 UTC−5
Updated: 6 years ago 10 janv. 2019, 08:32 UTC−5

Hi,

In principle, you are doing the right thing, so there must be some issue in how the point is included in the model.

This said, you can also add a point load at a completely arbitrary point (which may even be located at the interior of an element). This is more advanced, and requires the use of a probe (to capture the displacement into a variable) and a weak contribution (to specify the loading).

Regards,
Henrik

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Henrik Sönnerlind
COMSOL
Hi, In principle, you are doing the right thing, so there must be some issue in how the point is included in the model. This said, you can also add a point load at a completely arbitrary point (which may even be located at the interior of an element). This is more advanced, and requires the use of a probe (to capture the displacement into a variable) and a weak contribution (to specify the loading). Regards, Henrik

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