Non-linear beam theory in context of bio-inspired sensing of flows

dc.contributor.advisorBehn, Carsten
dc.contributor.advisorElías Giordano, Dante Ángel
dc.contributor.authorLavayen Farfán, Danieles_ES
dc.date.accessioned2017-03-31T20:43:22Zes_ES
dc.date.available2017-03-31T20:43:22Zes_ES
dc.date.created2016es_ES
dc.date.issued2017-03-31es_ES
dc.description.abstractThe thesis at hand is part of a research project that attempts to study and develop vibrissa inspired tactile sensors for object and fluid flow detection. The main focus of the thesis is on the development of a model for a vibrissa-like sensor for obstacle contour recognition under fluid loads. To this end, a mechanical model – based on the non-linear Euler-Bernoulli beam theory – is established. The model includes the main characteristics found in a natural vibrissa, such as elasticity of the base, that acts as the vibrissa follicle; the intrinsic curvature; and conicity. The characteristics are represented as parameters of the model. The model is subjected to a contact load and a fluid flow load, represented by a concentrated load and a distributed load, respectively. Then, the model is transformed into a dimensionless representation for further studies to achieve more general assertions. A variation of the magnitude of these loads, as well as the vibrissa parameters is also analyzed. A direct numerical approximation using the finite difference method, along with the shooting method, is used to obtain a solution of the model. Subsequently, the model is used to simulate an ideal contact between an obstacle and the vibrissa. This simulation considers a quasi-static sweep of the artificial vibrissa with the contour of a profile, while measuring and recording the forces and moment at the base. This procedure is then repeated in combination of a distributed force acting on the vibrissa, simulating the effect of a fluid flow. Two types of contact phases are identified and the conditions for each one are set. Finally, the measured quantities, which represent the observables an animal solely relies on, are used to obtain the magnitude of the fluid load and to reconstruct the profile contour of the obstacle. The developed model is used again for the reconstruction, an analysis of the observables is performed to identify and predict which contact phase the vibrissa is in. The results successfully show identification of the fluid flow load as well as reconstruction of the profile, the difference between the reconstructed profile and the original profile is then calculated as a measure of reconstruction quality.es_ES
dc.description.uriTesises_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12404/8324
dc.language.isoenges_ES
dc.publisherPontificia Universidad Católica del Perúes_ES
dc.publisher.countryPEes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/pe/*
dc.subjectTeoría de las haceses_ES
dc.subjectMateriales biomédicoses_ES
dc.subject.ocdehttps://purl.org/pe-repo/ocde/ford#2.03.01es_ES
dc.titleNon-linear beam theory in context of bio-inspired sensing of flowses_ES
dc.typeinfo:eu-repo/semantics/masterThesises_ES
renati.advisor.dni10142907
renati.discipline713347es_ES
renati.levelhttps://purl.org/pe-repo/renati/level#maestroes_ES
renati.typehttp://purl.org/pe-repo/renati/type#tesises_ES
thesis.degree.disciplineIngeniería Mecánicaes_ES
thesis.degree.grantorPontificia Universidad Católica del Perú. Escuela de Posgradoes_ES
thesis.degree.levelMaestríaes_ES
thesis.degree.nameMaestro en Ingeniería Mecánicaes_ES

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