A reduced-order cutFEM approach to model complex moving sound sources

While traditional finite element based vibro-acoustic analysis of structures is done on stationary structures, in many occasions the structure under investigation actually moving. To perform accurate performance such requires evaluation a time-varying system, leading to several challenges. Of paramount importance are strategy update mesh new configuration and an adequate time integration scheme that does not introduce large numerical artifacts. Additionally, nature leads increase computational complexity. In this paper modeling cut elements (cutFEM) introduced aims tackle these The cutFEM approach can be seen as fictitious domain which source moving over static mesh, cutting through where actual located, using level set description. key advantage no remeshing and/or morphing required. It shown how both implicit explicit schemes used propagate solution while model order reduction strategies compared speed up online reduced model.