Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model: Part 1 — Theory

D. M. Feiner, J. H. Griffin

doi:10.1115/gt2003-38952

Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model: Part 1 — Theory

DOI PDF 被引用文献1件

D. M. Feiner

Carnegie Mellon University, Pittsburgh, PA
J. H. Griffin

Carnegie Mellon University, Pittsburgh, PA

書誌事項

公開日: 2003-01-01

DOI

10.1115/gt2003-38952

公開者: ASMEDC

説明

<jats:p>This paper is the first in a two-part study of identifying mistuning in bladed disks. It develops a new method of mistuning identification based on measurements of the vibratory response of the system as a whole. As a system-based method, this approach is particularly suited to integrally bladed rotors, whose blades cannot be removed for individual measurements. The method is based on a recently developed reduced order model of mistuning called the Fundamental Mistuning Model, FMM, and is applicable to isolated families of modes. Two versions of FMM system identification are presented: a basic version that requires some prior knowledge of the system’s properties, and a somewhat more complex version that determines the mistuning completely from experimental data.</jats:p>