When a CAD part is analyzed in CAE, in earlier stages of design, it is simplified. Irrelevant features like, small-fillets/holes/chamfers are removed. Thin portions are idealized to midsurface etc. Such simplified model, takes lesser times/resources in CAE analysis, without harming accuracy of results.
So there are two aspects where TRIZ can potentially come in,
- techniques to remove small-irrelevant things while keeping principal shape