SDTools will be present at the CSMA 2024 conference https://csma2024.sciencesconf.org/
The talk [1] to be given will address challenges associated to the generation of a Hybrid FEM/test twin model of an automotive electric car engine in partnership with Stellantis:
- Describing test outputs
The electric engine case study being detailed combines strong dominance of harmonic responses and un-measured inputs. The harmonic balance vector signal model chosen gives a space/time/frequency approximation of the response. - Choosing model parameters
Geometry, contacts in bolted joints and laminated stacks, non-linear viscoelastic bushings have here a notable impact. - Building a reduced parametric model
This provides a 2 to 3 orders of magnitude speedup that is necessary for any practical application. - Building a Hybrid FEM/test twin model
Test and FEM are combined using an expansion-based state/parameter estimation process.