Geometry assurance and non-rigid variation simulation
Geometry assurance is a way to achieve high quality products, by reducing the effect of variation in design and production. The presentation will introduce the area and highlight research challenges and solutions mainly focusing on statistical non-rigid variation simulation. For non-rigid variation simulation, Monte Carlo simulation is combined with finite element analysis the behavior of compliant components and assemblies. The simulation needs to capture how part variation propagates through an assembly, and how the fixturing and joining processes affect the result. To achieve high accuracy in the simulation as many as possible of the phenomena affecting the result in reality must be included, while keeping simulation time down. Also aspect such as a digital twin for geometry assurance and the digital thread supporting a digital twin setup will be discussed, as well as future research areas and an outlook on important topics in tolerancing and geometry assurance.