@inproceedings{c767a619f405460ca4879c64b7e66adf,
title = "How measurement inaccuracies induce spurious peaks in Frequency Based Substructuring",
abstract = "When assembling Frequency Response Functions (FRF) from substructures to build a model of a complex system spurious peaks appear in the assembled FRF. Such mechanically inconsistent peaks appear in substructures for which the FRFs are affected by even very small measurement errors. In this paper we propose a simple algebraic analysis of the assembled matrices and point out that spurious peaks can arise at frequencies in the vicinity of local eigenfrequencies of the substructures. In addition we indicate that for local eigenfrequencies the assembly process should in theory make use a pseudo-inverse of the impedance matrices and one should enforce a complementary self-equilibrium condition.",
keywords = "Assembly of flexibility, Experimental Substructuring, Spurious peaks",
author = "Rixen, {Daniel J.}",
year = "2008",
language = "English",
isbn = "9781605600666",
series = "Conference Proceedings of the Society for Experimental Mechanics Series",
booktitle = "IMAC-XXVI",
note = "26th Conference and Exposition on Structural Dynamics 2008, IMAC-XXVI ; Conference date: 04-02-2008 Through 07-02-2008",
}