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Título : Biomechanics and biotensegrity : study method and frequency response of the simplex and 3- bar-SVD tensegrity configurations
Autor : Castro Arenas, Cristhian 
Ghersi, Ignacio 
Miralles, Mónica Teresita 
Fecha de publicación : 2016
Editorial : IOP Publishing
Cita : Castro Arenas C., Ghersi I., Miralles MT. Biomechanics and biotensegrity : study method and frequency response of the simplex and 3-bar-SVD tensegrity configurations [en línea]. Journal of physics : conference series 705 2016. DOI: 10.1088/1742-6596/705/1/012018 Disponible en:
Resumen : Abstract: The purpose of this work is to study the frequency response of 3D tensegrity structures. These are structures that have been used, since the 80’s, to model biological systems of different scales. This fact led to the origin of the field of biotensegrity, which includes biomechanics as a natural field of application. In this work: a) A simple method for the analysis of frequency response of different nodes in 3D tensegrity structures was set up and tuned. This method is based on a video-analysis algorithm, which was applied to the structures, as they were vibrated along their axis of symmetry, at frequencies from 1 Hz to 60 Hz. b) Frequency-response analyses were performed, for the simplest 3D structure, the Simplex module, as well as for two towers, formed by stacking two and three Simplex modules, respectively. Resonant frequencies were detected for the Simplex module at (19.2± 0.1) Hz and (50.2±0.1) Hz (the latter being an average of frequencies between homologous nodes). For the towers with two and three modules, each selected node presented a characteristic frequency response, modulated by their spatial placement in each model. Resonances for the two-stage tower were found at: (12 ±0.1) Hz; (16.2±0.1) Hz; (29.4±0.1) Hz and (37.2 ± 0.1) Hz. For the tower with three Simplex modules, the main resonant frequencies were found at (12.0± 0.1) Hz and (21.0± 0.1) Hz. Results show that the proposed method is adequate for the study (2D) of any 3D tensegrity structure, with the potential of being generalized to the study of oscillations in three dimensions. A growing complexity and variability in the frequency response of the nodes was observed, as modules were added to the structures. These findings were compared to those found in the available literature
Disciplina: INGENIERIA
Derechos: Acceso Abierto
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