Rückwald, TobiasTobiasRückwaldHeld, AlexanderAlexanderHeldSeifried, RobertRobertSeifried2021-11-152021-11-152022-01Multibody system dynamics 54 (1): 75-95 (2022-01)http://hdl.handle.net/11420/10928Usually detailed impact simulations are based on isoparametric finite element models. For the inclusion in multibody dynamics simulation, e.g. in the framework of the floating frame of reference, a previous model reduction is necessary. A precise representation of the geometry is essential for modeling the dynamics of the impact. However, isoparametric finite elements involve the discretization of the geometry. This work tests isogeometric analysis (IGA) models as an alternative approach in the context of impact simulation in flexible multibody systems. Therefore, the adaption of the flexible multibody system procedure to include IGA models is detailed. The use of non-uniform rational basis splines (NURBS) allows the exact representation of the geometry. The degrees of freedom of the flexible body are afterwards reduced to save computation time in the multibody simulation. To capture precise deformations and stresses in the area of contact as well as elastodynamic effects, a large number of global shape functions is required. As test examples, the impact of an elastic sphere on a rigid surface and the impact of a long elastic rod are simulated and compared to reference solutions.en1573-272X20227595Springer Science + Business Media B.V.https://creativecommons.org/licenses/by/4.0/Impact simulationIsogeometric analysisFloating frame of reference formulationHertzPhysikTechnikIngenieurwissenschaftenJournal Article10.15480/882.390110.1007/s11044-021-09804-x10.15480/882.3901Journal Article