Insight into Damping Sources in Turbines-Reference-Cited by-同舟云学术

Insight into Damping Sources in Turbines

Published:2022-12-01 Issue:14 Volume:2022 Page:69-82
ISSN:2300-7591
Container-title:Fatigue of Aircraft Structures
language:en
Short-container-title:

Author:

Moneta Grzegorz¹^ORCID

Affiliation:

1. Łukasiewicz Research Network, Institute of Aviation , Al. Krakowska 110/114 Warsaw , Poland

Abstract

Abstract Blade vibrations in aircraft engines are a significant challenge that must be overcome during the design and development of modern turbine engines. Vibrations lead to cyclic displacements and result in alternating stress and strain in undesired environments (high temperatures, erosion, corrosion of the surface, etc.). Under resonance conditions, stress amplitudes can increase and exceed their safety limits, and in extreme cases, can lead to engine failure. One method to reduce resonance vibrations is to increase damping in the turbine assembly. This paper presents and describes vibration damping sources in the turbine, including aerodynamic, material, and friction damping. Additionally, typical damping values for each damping component are presented and compared.

Publisher

Walter de Gruyter GmbH

Subject

Mechanics of Materials,Safety, Risk, Reliability and Quality,Aerospace Engineering,Civil and Structural Engineering

Link

https://www.sciendo.com/pdf/10.2478/fas-2022-0006

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