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

M. Tufekci; Q. Rendu; J. Yuan; J. P. Dear; L. Salles; A. V. Cherednichenko

doi:10.1115/GT2020-14821

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

M. Tufekci^*, Q. Rendu, J. Yuan, J. P. Dear, L. Salles, A. V. Cherednichenko

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

9 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition
Subtitle of host publication	Structures and Dynamics: Emerging Methods in Design and Engineering
Place of Publication	New York
Publisher	American Society of Mechanical Engineers(ASME)
Number of pages	12
Volume	10B
Edition	Structures and Dynamics
ISBN (Electronic)	9780791884225
DOIs	https://doi.org/10.1115/GT2020-14821
Publication status	Published - 11 Jan 2021
Externally published	Yes
Event	ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition - Virtual, Online Duration: 21 Sept 2020 → 25 Sept 2020 https://event.asme.org/Turbo-Expo-2020

Conference

Conference	ASME Turbo Expo 2020
City	Virtual, Online
Period	21/09/20 → 25/09/20
Internet address	https://event.asme.org/Turbo-Expo-2020

Funding

The authors would like to acknowledge the support of Scientific and Technological Research Council of Turkey (TUBITAK) that makes this research possible.

Keywords

stress
modal analysis
rotating blade
effects
nonlocality

Access to Document

10.1115/GT2020-14821

Cite this

Tufekci, M., Rendu, Q., Yuan, J., Dear, J. P., Salles, L., & Cherednichenko, A. V. (2021). Stress and modal analysis of a rotating blade and the effects of nonlocality. In roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition: Structures and Dynamics: Emerging Methods in Design and Engineering (Structures and Dynamics ed., Vol. 10B). Article V10BT26A008 American Society of Mechanical Engineers(ASME). https://doi.org/10.1115/GT2020-14821

Tufekci, M. ; Rendu, Q. ; Yuan, J. et al. / Stress and modal analysis of a rotating blade and the effects of nonlocality. roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition: Structures and Dynamics: Emerging Methods in Design and Engineering. Vol. 10B Structures and Dynamics. ed. New York : American Society of Mechanical Engineers(ASME), 2021.

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title = "Stress and modal analysis of a rotating blade and the effects of nonlocality",

abstract = "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.",

keywords = "stress, modal analysis, rotating blade, effects, nonlocality",

author = "M. Tufekci and Q. Rendu and J. Yuan and Dear, {J. P.} and L. Salles and Cherednichenko, {A. V.}",

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Tufekci, M, Rendu, Q, Yuan, J, Dear, JP, Salles, L & Cherednichenko, AV 2021, Stress and modal analysis of a rotating blade and the effects of nonlocality. in roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition: Structures and Dynamics: Emerging Methods in Design and Engineering. Structures and Dynamics edn, vol. 10B, V10BT26A008, American Society of Mechanical Engineers(ASME), New York, ASME Turbo Expo 2020, Virtual, Online, 21/09/20. https://doi.org/10.1115/GT2020-14821

Stress and modal analysis of a rotating blade and the effects of nonlocality. / Tufekci, M.; Rendu, Q.; Yuan, J. et al.
roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition: Structures and Dynamics: Emerging Methods in Design and Engineering. Vol. 10B Structures and Dynamics. ed. New York: American Society of Mechanical Engineers(ASME), 2021. V10BT26A008.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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AU - Rendu, Q.

AU - Yuan, J.

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AU - Salles, L.

AU - Cherednichenko, A. V.

PY - 2021/1/11

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N2 - 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.

AB - 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.

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Tufekci M, Rendu Q, Yuan J, Dear JP, Salles L, Cherednichenko AV. Stress and modal analysis of a rotating blade and the effects of nonlocality. In roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition: Structures and Dynamics: Emerging Methods in Design and Engineering. Structures and Dynamics ed. Vol. 10B. New York: American Society of Mechanical Engineers(ASME). 2021. V10BT26A008 Epub 2020 Sept 25. doi: 10.1115/GT2020-14821

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

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Keywords

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