What is the problem in this model?

I want to do the analysis of this part in Asnsy, Ansys does not accept this part.

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2 Answers

There are two bodies in the file. One is a solid, the other is a surface.
The surface body has a defect, see attached image.

 
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Kindly upload the model in .igs format, so that it can be opened in any designing app

 
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