lattice optimization

Altair Forum User

hello to all .Can anyone tell me how to view design violation error after lattice optimization-(i am getting often).

How to view that what design violation one has made?

and also i want to ask that is there's a standard procedure or method to do lattice optimization?

I didn't found any relevant document explaining the issues. 

Altair Forum User

Hello @Lala

I see noone hasn't answered you yet. The lattice optimization in Inspire is performed in two phases: a) topo optimization, b) lattice optimization. In my opinion the reason why you have design error mark in lattice optimization result is that you simply can't reach the objective (for example: you wanna have 100% lattice filling) with the parameters you have prescribed. I performed an example:

 

a) 1st run
target length = 6 mm
min diameter = 1 mm

max diameter = 3 mm

safety factor = 2

lattice filling = 100 %

-> ERROR mark in results

 

b) 2nd run

target length = 6 mm
min diameter = 1 mm

max diameter = 3 mm

safety factor = 1

lattice filling = 100 %

-> results OK

So what can I say about it: In my opinion Inspire is a little bit dummy in this type of optimization. Because if you wanna perform a lattice optimization you have to overestimate topo optimization results.