Using meshless methods to simulate the free vibrations of the cupula under pathological conditions

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2019

Autores

Santos, CF (Autor) Outra; Parente, MPL (Autor) FEUP; Belinha, J (Autor) Outra; Renato Natal Jorge (Autor) FEUP; Gentil, F (Autor) Outra

Ata de Conferência Internacional

Título: Biodental Engineering V

Páginas: 135-140

Proceedings of the 5th International Conference on Biodental Engineering (BIODENTAL 2018)

Porto, Portugal, June 22-23, 2018

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00Q-E01

DOI: 10.1201/9780429265297-29

Abstract (EN): Each canal of the vestibular system of the inner ear is composed of a circular path of continuum fluid. Inside each semicircular canal, it is possible to find a cupula, a gelatinous body containing sensory hair cells, and the focus of this work. One of the causes of vestibular disorders is the abnormal concentration of otoconia particles near the cupula. The accurate determination of the natural frequency (first vibration frequency) of the cupula would allow to know which external frequency could be induce to stimulate externally the cupula. Thus, theoretically, the resonance effect would induce physical vibration to the cupula and disperse the otoconia particles, reducing the vertigo symptoms. Hence, in this wok, two-dimensional and three-dimensional geometrical models of the cupula were constructed. Then, a free vibration analysis was performed using three distinct numerical techniques, the Finite Element Method (FEM), and two meshless methods: the Radial Point Interpolation Meshless Method (RPIM) and the Natural Neighbour Radial Point Interpolation Method (NNRPIM).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6