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Volume 8: 26th Conference on Mechanical Vibration and Noise
This technical brief is to study how flexible bearings and housing affect mode localization of a nearly cyclic symmetric system with mistuning. This study is conducted via finite-element analyses and deductive reasoning. A reference system studied is a bladed disk with two groups of 24 localized modes. When bearings and housing are introduced into the reference system, their presence changes natural frequencies, mode shapes, and the number of the localized modes. Moreover, the mistuning causesdoi:10.1115/detc2014-34536 fatcat:glymtigdhvcefoupse3bghmrfu