Nodes by Face Selection - Wrong Result

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

 

I've been trying to select a bunch of nodes by a face to add an RBE2 to it, but when selecting by face, it will actually select an adjacent, slightly inclined face as well. Is there a way to tell HyperMesh not to select the nodes on the adjacent face? The only method I found so far is to select each node manually but at an element size of 1, in this case it would be very tedious. I'm dealing with probably a few thousand nodes on the face I want.

 

The first 2 attached images display what I'd like it to do. These nodes have been manually selected. 

 

The third image shows how it's - wrongly! - automatically selecting the nodes on 2 faces.

<?xml version="1.0" encoding="UTF-8"?>Manual Selection.PNG

<?xml version="1.0" encoding="UTF-8"?>Manual Selection 2.PNG

<?xml version="1.0" encoding="UTF-8"?>Automatic Selection.PNG

Tagged:

Answers

  • tinh
    tinh Altair Community Member
    edited December 2015

    Hi,

    it looks like 2 faces quite smooth

    Please enter menu Preferences>Mesh Options, set Feature Angle to smaller value, example 5D, this angle should be smaller than inclined angle between 2faces

    default value 30D for most used

     

    and you just have to pre-select 1 node only, then select 'by face'

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2015

    Thanks so much! It worked a treat!

Categories