Dynamical responses and analysis of rotor-nacelle systems subjected to aerodynamic and base excitations

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Autor(es): dc.contributorNew Mexico State University-
Autor(es): dc.contributorSandia National Laboratories-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorQuintana, A.-
Autor(es): dc.creatorSaunders, B. E.-
Autor(es): dc.creatorVasconcellos, R.-
Autor(es): dc.creatorAbdelkefi, A.-
Data de aceite: dc.date.accessioned2025-08-21T15:27:08Z-
Data de disponibilização: dc.date.available2025-08-21T15:27:08Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11071-023-09074-6-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300805-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300805-
Descrição: dc.descriptionThe whirl flutter in rotor-driven aircraft is a significant aeroelastic instability resulting from the intricate interplay between structural, gyroscopic, and aerodynamic effects, exacerbated by nonlinearities. This phenomenon manifests as oscillatory behaviors within the aircraft's structure, carrying the risk of severe consequences and potential hazards. In this research endeavor, a nonlinear reduced-order model incorporating quasi-steady aerodynamics is employed to comprehensively analyze the behavior of a nacelle-rotor system and gain valuable insights into the dynamics of whirl flutter and its combined effect with external moments due to base excitations. Specifically, the study investigates the impact of external moment disturbances in conjunction with the aerodynamic excitations on the dynamical responses of a rotor-nacelle system, using parameters of a simplified model from previous studies as a basis for analysis. This investigation utilizes a solution methodology that includes linear and nonlinear approaches in order to explore the influences of rotor angular velocity, blade length, the number of blades, and their interplay with external moments applied to pitch and yaw degrees of freedom. The findings demonstrate the importance of considering these factors concerning the concurrent oscillations due to whirl flutter and other external moments with regard to the potential for resonance, quenching, and nonlinear responses in the system’s dynamics.-
Descrição: dc.descriptionNew Mexico Space Grant Consortium-
Descrição: dc.descriptionDepartment of Mechanical and Aerospace Engineering New Mexico State University-
Descrição: dc.descriptionSandia National Laboratories-
Descrição: dc.descriptionSão Paulo State University (UNESP), Campus of São João da Boa Vista-
Descrição: dc.descriptionSão Paulo State University (UNESP), Campus of São João da Boa Vista-
Formato: dc.format233-258-
Idioma: dc.languageen-
Relação: dc.relationNonlinear Dynamics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDynamics-
Palavras-chave: dc.subjectNonlinear-
Palavras-chave: dc.subjectQuenching phenomenon-
Palavras-chave: dc.subjectResonance-
Palavras-chave: dc.subjectRotor-nacelle systems-
Palavras-chave: dc.subjectWhirl flutter-
Título: dc.titleDynamical responses and analysis of rotor-nacelle systems subjected to aerodynamic and base excitations-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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