Investigation of vibration and fatigue life of mistuned bladed disks

DOI

10.2991/aime-17.2017.114How to use a DOI?

Keywords

vibration; blisk; mistuning; frequencies; localization

Abstract

This article presents the results of experimental and finite element analysis of mistuned free vibration of bladed disk models. Blade-to-blade variations of bladed disk assemblies result in local zoning of vibration modes as well as amplitude magnifications, which primarily reduces the high cycle fatigue life of turbomachines rotors. Geometrical mistuning and other types of mistuning were investigated to determine the level of these mode localization effects depending on various vibration parameters of a bladed disk. The main objective was to determine the order of mistuned blades in the bladed disk, leading to the largest and smallest change in vibration characteristics. Obtaining dependencies are important for following researches in this field, in particular, for calculating the fatigue life of the real bladed disks.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - O. Repetckii
AU  - Tien Quyet Nguyen
AU  - I. Ryzhikov
PY  - 2017/07
DA  - 2017/07
TI  - Investigation of vibration and fatigue life of mistuned bladed disks
BT  - Proceedings of the International Conference "Actual Issues of Mechanical Engineering" 2017 (AIME 2017)
PB  - Atlantis Press
SP  - 702
EP  - 707
SN  - 2352-5401
UR  - https://doi.org/10.2991/aime-17.2017.114
DO  - 10.2991/aime-17.2017.114
ID  - Repetckii2017/07
ER  -