Dynamic Substructuring (DS) is a powerful engineering concept to model and analyse dynamic systems in terms of its components or substructures. It derives from the ancient principle of “divide and conquer” (“divide et impera”), which suggests that large problems are most effectively governed by dividing them into smaller parts and choosing the best approach for each. Dynamic Substructuring does just that: it allows to model each component using the most quality- and cost-effective technique and “substructure” their dynamics together. This way, one can simulate the sound and vibration behaviour of the full assembly (the end-product), long before any physical prototype is available.
With Dynamic Substructuring, insights on full-vehicle NVH performance can be obtained much earlier, as already-available components can be measured and substructured to FE models of the rest of the vehicle