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[kwak dongkyu]

hi

i want to make beam connection from top circle to bottom circle.

i choose the scope, refernce region, pinbal range.

but when i run the solve it has an error message like below.

'at least one contact pair or remote load has no elements in it. this may be due to mesh based defeaturing of the geometry.'

may i ask you guys what is the reason for this

thank you

[Akshay Maniyar]

 

Hi,

This error message could appear due to coarse mesh in some contact regions of your model, possibly due to the mesh-based defeaturing which is on by default.

To fix this error try the following resolution:

Inside Workbench Mechanical

1) Choose Variable Manager from the Tools menu.

2) Right-click in the row to add a new variable.

3) Set Variable Name = contactAllowEmpty

4) Set Value = 1

5) Insert the check mark under Active

6) Click OK

Run the analysis and check the solve.out(Solution Information) to identify the problematic contact. Once you identify the problematic contact pair, you can check the contact faces and the mesh on these faces. You can either remove the sliver faces from contact or modify mesh controls to capture the face. Then make sure, you turn off the variable contactAllowEmpty and then solve the model

Thank you,

Akshay Maniyar

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[kwak dongkyu]

thanks for your reply

but i am totally beginner to ansys, so your advices are little bit hard for me to understand

in the tools menu what is the varaible manager that you said

and also from solution information how can i identify the problematic contact

which setting should i have to do

thank you

 

[Akshay Maniyar]

Hi kwak dongkyu,

Sorry for the trouble. I have added some images to my previous answer which can help you in understanding the solution I have provided. Also, if you have a small model with less number of contacts, try refining the mesh for the complete model and see if it resolves your issue. The above method is to identify the contact which is creating issues and then modify the mesh controls. 

Thank you,

Akshay Maniyar

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