ABSTRACT
This paper uses a non-probabilistic interval finite element method (IFEM) for the eigenvalue and frequency response function (FRF) analysis of a structure with uncertain parameters. The comparison of the obtained results with the results of Monte Carlo simulations proves that the IFEM gives a good approximation of the dynamic behaviour of uncertain structures. The use of a component mode synthesis (CMS) method to divide large structures into deterministic components and a non-deterministic residual structure can reduce the computation time of the IFEM without loss of accuracy.