Lattice structure minimum diameter

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

Hello

 

Normally a lattice optimization does create lattice structures of different elements. Does a way exist to set a minium diameter of the lattice structure?

I know the function 'MINRAD', which cleans in the second optimization phase and eliminates all elements above the set value. If I use MINRAD, almost all  lattice structures are eliminated, as they are quite small (between 0.0027 and 0.335 mm). The ideal lattice structure would have diameters above 0.5 or 1 mm. How can this be set?

 

I thank you in advance for your help!

Tagged:

Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi,

     

    You can set a Maximum Radii using MAXRAD. 

     

    I dont see a way for minimum radius, but I will check if there is a way to work it out.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hello

     

    Thank you! 

    Well the minimum diameter is also related to the element size. I guess by setting a mesh with enough big elements, will create bigger lattice structures. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    How does the MINDIM work? 

     

    I have changed the elment mesh size to 7.5 mm and set MINDIM to 0.5 mm. But I still get lattice structures with smaller diameters (Ømin=0.038 mm). 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi,


    I dont think MINDIM will help as MINDIM should be set to 3 times the element size.

     

    I will check with devs regarding the same and will let you know soon. 

Categories