Stress and modal analysis of a rotating blade and the effects of nonlocality

Tufekci, M; Rendu, Q; Yuan, J; Dear, J P; Salles, Loïc; Cherednichenko, A V

doi:10.1115/GT2020-14821

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Stress and modal analysis of a rotating blade and the effects of nonlocality

Tufekci, M; Rendu, Q; Yuan, J et al.

2020 • In Proceedings of the ASME Turbo Expo, 10B-2020

Peer reviewed

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https://hdl.handle.net/2268/334069

DOI
10.1115/GT2020-14821

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Keywords :

Modal analysis; Rotating blades; Stress; Finite element methods

Abstract :

[en] This study focuses on the quasi-static stress and modal analyses of a rotor blade by using classical and nonlocal elasticity approaches. The finite element method with an additional numerical integration process is used to evaluate the integral equation of nonlocal contionuum mechanics. The blade is assumed to be made of a linear elastic material of weak nonlocal characteristic. Such materials can be composites, metallic foams, nanophased alloys etc. A full-scale fan blade model is chosen as the test case to represent the rotor blade for a modern high bypass ratio turbofan engine. The boundary conditions and loads are chosen based on the steady-state cruising operating conditions of such blades. The nonlocal stresses are calculated by processing the calculated local stresses. To calculate the nonlocal stresses, the integral form of nonlocal elasticity is employed in the discretised domain. The results of the two cases are compared and discussed.

Disciplines :

Aerospace & aeronautics engineering

Author, co-author :

Tufekci, M

Rendu, Q

Yuan, J

Dear, J P

Salles, Loïc ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Vibration of Turbomachines ; Imperial College London > Mechanical Engineering > Vibration University Technology Centre

Cherednichenko, A V

Language :

English

Title :

Stress and modal analysis of a rotating blade and the effects of nonlocality

Publication date :

2020

Event name :

ASME Turbo Expo 2020 Turbomachinery Technical Conference & Exposition

Event place :

London, United Kingdom

Event date :

2020

Audience :

International

Journal title :

Proceedings of the ASME Turbo Expo

Volume :

10B-2020

Peer review/Selection committee :

Peer reviewed

Available on ORBi :

since 06 July 2025

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