Non-prismatic beam-like structures are widespread in many engineering and science applications. Important examples include the rotor blades of wind turbines and helicopters. Their mechanical behaviour can be simulated using 3D beam models, which are computationally efficient, accurate and explicitly consider such structures’ main geometric features, the large deflection of their reference centre-line and 3D warping of their transverse cross-sections. This paper proposes a mathematical model for such structures. A variational approach and the smallness of the warping and strain fields are exploited to obtain the model. Analytical and numerical results obtained with the proposed modelling approach are presented and compared to those from nonlinear 3DFEM simulations.

Rotor blades as curved, twisted and tapered beam-like structures subjected to large deflections / Migliaccio, Giovanni; Ruta, Giuseppe. - In: ENGINEERING STRUCTURES. - ISSN 0141-0296. - 222:(2020). [10.1016/j.engstruct.2020.111089]

Rotor blades as curved, twisted and tapered beam-like structures subjected to large deflections

Ruta, Giuseppe
Secondo
Supervision
2020

Abstract

Non-prismatic beam-like structures are widespread in many engineering and science applications. Important examples include the rotor blades of wind turbines and helicopters. Their mechanical behaviour can be simulated using 3D beam models, which are computationally efficient, accurate and explicitly consider such structures’ main geometric features, the large deflection of their reference centre-line and 3D warping of their transverse cross-sections. This paper proposes a mathematical model for such structures. A variational approach and the smallness of the warping and strain fields are exploited to obtain the model. Analytical and numerical results obtained with the proposed modelling approach are presented and compared to those from nonlinear 3DFEM simulations.
2020
Non-prismatic; Large deflection; Cross-sections; Warping; Taper effects
01 Pubblicazione su rivista::01a Articolo in rivista
Rotor blades as curved, twisted and tapered beam-like structures subjected to large deflections / Migliaccio, Giovanni; Ruta, Giuseppe. - In: ENGINEERING STRUCTURES. - ISSN 0141-0296. - 222:(2020). [10.1016/j.engstruct.2020.111089]
File allegati a questo prodotto
File Dimensione Formato  
Migliaccio_Rotar_2020.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 4.62 MB
Formato Adobe PDF
4.62 MB Adobe PDF   Contatta l'autore
Migliaccio_Rotar_2020_postprint.pdf

Open Access dal 01/12/2022

Tipologia: Documento in Post-print (versione successiva alla peer review e accettata per la pubblicazione)
Licenza: Creative commons
Dimensione 980.58 kB
Formato Adobe PDF
980.58 kB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1443197
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 9
social impact