Tip-timing analysis of last stage steam turbine mistuned bladed disc during run-down

Tip-timing analysis of last stage steam turbine mistuned bladed disc during run-down

This paper presents the experimental and numerical studies of last stage LP mistuned steam turbine bladed discs during run-down. The natural frequencies and mode shapes of the turbine bladed disc were calculated using an FE model. The influence of shaft was considered. The tip-timing method was used...

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Bibliographic Details
Main Authors: Rzadkowski Romuald, Kubitz Leszek, Maziarz Michał, Troka Pawel, Piechowski Leszek, Szczepanik Ryszard
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201821103003
Description
Summary:This paper presents the experimental and numerical studies of last stage LP mistuned steam turbine bladed discs during run-down. The natural frequencies and mode shapes of the turbine bladed disc were calculated using an FE model. The influence of shaft was considered. The tip-timing method was used to find the mistuned bladed disc modes and frequencies. The numerical results were compared with experimental ones.
ISSN:2261-236X

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