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Reaction Force

Posted 17 gen 2019, 05:38 GMT-5 Structural & Acoustics, Structural Mechanics 4 Replies

Ke Wu
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Hi there,

I am setting a prescribed displacement on a rigid body. How can I get the reaction force of prescribed displacement on this rigid body?

Thanks in advance, Ke Wu

4 Replies Last Post 23 gen 2019, 07:13 GMT-5
Henrik Sönnerlind COMSOL Employee

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Posted: 7 years ago 17 gen 2019, 11:19 GMT-5

Hi,

I assume that you are referring to the Prescribed Displacement/Rotation subnode on a Rigid Domain.

You need to select the Evaluate reaction forces check box in the Reaction Force Settings section. Then, reaction forces will be available when you work with global results, as shown in the attached screenshot.

Regards,
Henrik

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Henrik Sönnerlind
COMSOL
Hi, I assume that you are referring to the **Prescribed Displacement/Rotation** subnode on a **Rigid Domain**. You need to select the **Evaluate reaction forces** check box in the **Reaction Force Settings** section. Then, reaction forces will be available when you work with global results, as shown in the attached screenshot. Regards, Henrik

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Ke Wu
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Posted: 7 years ago 21 gen 2019, 11:26 GMT-5

Thanks so much for your reply！

However, I didn't find the reaction force under rigid domain section.

I attached the screenshot below.

Could you tell me where I did it wrong？

Thanks, Ke Wu

Thanks so much for your reply！ However, I didn't find the reaction force under rigid domain section. I attached the screenshot below. Could you tell me where I did it wrong？ Thanks, Ke Wu

Attachments:

Henrik Sönnerlind COMSOL Employee

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Posted: 7 years ago 22 gen 2019, 03:39 GMT-5

Hi,

You need to do a Global Evaluation. The reaction force on a rigid domain is a scalar result and not a field in the domain.

Regards,
Henrik

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Henrik Sönnerlind
COMSOL
Hi, You need to do a **Global Evaluation**. The reaction force on a rigid domain is a scalar result and not a field in the domain. Regards, Henrik
Ke Wu
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Posted: 7 years ago 23 gen 2019, 07:13 GMT-5

Thank you so much!

Ke

Thank you so much! Ke

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