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warn message: isolated nodes have been found

7 REPLIES 7
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Message 1 of 8
tamararr
1173 Views, 7 Replies

warn message: isolated nodes have been found

Hi!I am modeling a steel S355 plate of dimensions 10000 x 4000 x 250mm. It is fixed in one of its boundaries and has 2 loads applied: one in its plane in the opposite boundary to the support and one acting perpendicularly in the middle of it.

I more or less followed the guideline for plates in robotoffice.com but when I start the calculation I get the warn message of isolated nodes in the model. I tried to solve this problem delating the nodes where the load is applied but of course, the load dissappears. If I disregard this message, I get no result when doing the calcualtion.

 

Hope you can help me with this.

Thank you in advance.

 

Regards,

Tamara

7 REPLIES 7
Message 2 of 8
jad.dellel
in reply to: tamararr

Hi tamara,

can you upload your rtd file compressed please?

Thanks.

-----------------


Jad DELLEL
Sustainability Success Manager - Autodesk, Inc.

Message 3 of 8
tamararr
in reply to: tamararr

Hi!

Thank you for the fast answer. I tried again but instead of defining the nodes for applying the loads, I used the  "force in point" command. I got a result but I am not sure if this is the best way to model the plate. It is a solid steel plate and I followed these steps:

 

Volumetric structure design

Axis definition

Polyline/contour

Panel-and press a point inside the contour

Extrude it to the thickness (250mm)

Fixed support (linear) in one of the 4000mm length boundaries

Defined two dead loads

Load definition-force in point (and gave the coordinates and value of the two loads)

 

Thank you for your help.

 

Regards,

Tamara

 

Message 4 of 8
jad.dellel
in reply to: tamararr

Tamara,

You should use the shell design ( plate design is included).

Please see http://images.autodesk.com/adsk/files/robot_2010_training_manual_metric.pdf from page n°98, It should helps you to define your plate.

I'll wait your shell model Smiley Happy

-----------------


Jad DELLEL
Sustainability Success Manager - Autodesk, Inc.

Message 5 of 8
tamararr
in reply to: tamararr

Thank you very much for your help! 🙂

I attach the shell model.

 

Regards,

Tamara

Message 6 of 8
jad.dellel
in reply to: tamararr

Tamara,

I think your plate is designed on the wrong plane (XZ), It should be done on the (XY) plane.

Please check it.

-----------------


Jad DELLEL
Sustainability Success Manager - Autodesk, Inc.

Message 7 of 8
tamararr
in reply to: tamararr

You are totally right, thank you again!Smiley Happy

Message 8 of 8
tamararr
in reply to: tamararr

Hi!

I have one more question: how to check plate buckling and torsional buckling of the model?

Thank you very much!

Regards,

/Tamara

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