FEA multiple load points

[el_jefe_de_steak]

Hi, I am new to the FEA analysis, and I have a general question regarding multiple load points.

I have a carriage that I am testing, and want to put an even load on all crossmembers of the floor. I created a load, and selected all the top faces of the crossmembers as loading points. There are 31(ish) load points under the same "load". As shown in the picture, does the FEA apply the 64lb load to each individual point, or does it apply a collective 64lbs load divided across all points?

[el_jefe_de_steak]

Hi, I am new to the FEA analysis, and I have a general question regarding multiple load points.

I have a carriage that I am testing, and want to put an even load on all crossmembers of the floor. I created a load, and selected all the top faces of the crossmembers as loading points. There are 31(ish) load points under the same "load". As shown in the picture, does the FEA apply the 64lb load to each individual point, or does it apply a collective 64lbs load divided across all points?

[Anonymous · Accepted solution]

The load you are applying will spread the 64lbs over all of the faces you have selected. A suggestion might be to create a block that fits the profile you need and extrude it such that it's mass is equal to the force you require.  You can use a high density material so that the extrusion is not too large.  You can then apply a gravity load to the top of this block.  Or if you are comfortable with using Inventor, you can recreate the carriage using Frame Generator which will allow you to use the Frame Analysis. 

[Anonymous · Accepted solution]

The load you are applying will spread the 64lbs over all of the faces you have selected. A suggestion might be to create a block that fits the profile you need and extrude it such that it's mass is equal to the force you require.  You can use a high density material so that the extrusion is not too large.  You can then apply a gravity load to the top of this block.  Or if you are comfortable with using Inventor, you can recreate the carriage using Frame Generator which will allow you to use the Frame Analysis. 

[JDMather]

I would probably use Frame Generator and Frame Analysis for that assembly.

But to answer your question - you can test this yourself by right clicking on the Constraints and getting the  Reaction Force.

Does the reported Reaction Force make sense to what you are expecting?

[JDMather]

I would probably use Frame Generator and Frame Analysis for that assembly.

But to answer your question - you can test this yourself by right clicking on the Constraints and getting the  Reaction Force.

Does the reported Reaction Force make sense to what you are expecting?

[el_jefe_de_steak]

Thanks that is very helpful.

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@Anonymous wrote:

I would probably use Frame Generator and Frame Analysis for that assembly.

But to answer your question - you can test this yourself by right clicking on the Constraints and getting the  Reaction Force.

Does the reported Reaction Force make sense to what you are expecting?

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[el_jefe_de_steak]

Thanks that is very helpful.

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@Anonymous wrote:

I would probably use Frame Generator and Frame Analysis for that assembly.

But to answer your question - you can test this yourself by right clicking on the Constraints and getting the  Reaction Force.

Does the reported Reaction Force make sense to what you are expecting?

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