Element normal in Hyperview

Beta
Beta New Altair Community Member
edited October 2020 in Community Q&A

Hi,

 

does anyone know how the element normal is calculated in Hyperview ???

 

I get the element normal from the Querry and use these values to create a user system.

 

However, it looks a bit different from the elemental system displayed when I used the system review.

 

Really wonder how it could be possible

 

<?xml version="1.0" encoding="UTF-8"?>image.thumb.png.e819308dd672421bd6a7e8361208d0b1.png

Tagged:

Answers

  • tinh
    tinh Altair Community Member
    edited January 2019

    In a warpage quad elem, if we split it into 2 trias, normal is mid ray of angle between 2 trias.

    In calculation, take vector N1N3 x N2N4 

  • Beta
    Beta New Altair Community Member
    edited January 2019

    Hi Tinh,

     

    Seem like I get it correctly, still wonder why the elemental system displayed by system review tool does not have the z-direction same with the element normal

  • tinh
    tinh Altair Community Member
    edited January 2019

    The tool displays normal as vector N1N2N3, it is correct normal calculated by hypermesh, too. If you want to match, use N1N2N3

    Some solvers could do N1N3 x N2N4

  • Beta
    Beta New Altair Community Member
    edited January 2019

    Hi Tinh,

     

    I found that with OptiStruct Solver, to match with the system review tool in HV, it must be N1N3xN2N4. Thank for useful suggestion

Categories