Numerical and experimental analysis of a segmented wind turbine blade under assembling load effects

• Autorzy: Yangui Majdi , Bouaziz Slim , Taktak Mohamed , Debut Vincent , Antunes Jose , Haddar Mohamed

Identyfikatory

DOI

10.15632/jtam-pl.57.1.85

• Języki publikacji: EN

Abstrakty

EN

In this paper, numerical and experimental modal analysis of a segmented wind turbine blade assembled with a steel threaded shaft and a nut are presented. The blade segments are built by a 3D printer using ABS material. The experimental modal parameters identification has been achieved using the Eigen system Realization Algorithm (ERA) method for different values of the blade segments assembly force caused by the nut tightening torque. Furthermore, a three dimensional finite element model has been built using DTK18 three node triangular shell elements in order to model the blade and the threaded shaft structure, taking into account the additional stiffness caused by the nut tightening torque. This study covers the blade segments assembly force effects on the rotating blade vibration characteristics. The numerical model is adjusted and validated by the identified experimental results. This work highlights the significant variation of the natural frequencies of the segmented wind turbine blade by the assembling load of the segments versus blade rotating speed.

Słowa kluczowe

EN

segmented wind turbine blade; experimental modal analysis; shell element modeling; assembling load

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2019
• Tom: Vol. 57 nr 1
• Strony: 85--97
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Yangui Majdi

• Mechanics, Modelling and Production Laboratory (LA2MP), National School of Engineers of Sfax, University of Sfax, Tunisia

autor

Bouaziz Slim

• Mechanics, Modelling and Production Laboratory (LA2MP), National School of Engineers of Sfax, University of Sfax, Tunisia

autor

Taktak Mohamed

• Mechanics, Modelling and Production Laboratory (LA2MP), National School of Engineers of Sfax, University of Sfax, Tunisia

autor

Debut Vincent

• Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal

autor

Antunes Jose

• Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Portugal

autor

Haddar Mohamed

• Mechanics, Modelling and Production Laboratory (LA2MP), National School of Engineers of Sfax, University of Sfax, Tunisia

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).