Reduced order models of rotating mistuned bladed diskassemblies using component mode synthesis methods withinterface modes

摘要

In this paper, a finite element-based reduced order method is presented with application to the prediction ofrnrotating mistuned bladed disk forced response. This method has already been applied to tuned non-rotatingrnmodels having cyclic symmetry. The aim is to reduce significantly the number of interface co-ordinates,rnwhich would be very important in classical component mode synthesis methods. The approach is based onrnthe use of the interface modes which result from a static condensation of the whole structure on the wholerninterface. Implementation of this procedure is still in progress. This paper sums up the work achieved duringrnthe first year of a doctoral dissertation.