# Hybrid modeling¶

By hybrid modeling we mean multi–body modeling combining rigid bodies connected via springs with finite–element or rigid bodies interacting via non–smooth laws. For some problems, this type of modeling can be useful, allowing for shorter runtime, in cases where solely non–smooth models could be computationally prohibitive. For example, when analyzing frequency response of a large scale multi–body structure, a fraction of it (an area of interest) could be modeled using the NSCD approach, while the remaining (predominate) part could be modeled in a simplified manner (using rigid bodies and springs).

Hybrid modeling is available in Solfec-1.0 via the HYBRID_SOLVER interface. In this case Parmec is used as a software library facilitating modeling of the rigid body – spring systems. Currently available examples of the hybrid modeling functionality include: