Exploració per tema "Enginyeria acústica"
Ara es mostren els items 21-34 de 34
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Implementation of a microphone array for the detection of the direction of arrival of gunshots
(Universitat Politècnica de Catalunya, 2021-01-24)
Treball Final de Grau
Accés obert
Realitzat a/amb: Universitetet i LinköpingThis thesis report explains the implementation of a microphone array that consists of 4 microphones and discusses the methodology used to obtain Direction Of Arrival (DOA) estimations from the recordings of the implemented ... -
Joint model-based recognition and localization of overlapped acoustic events using a set of distributed small microphone arrays
(2017-12-19)
Report de recerca
Accés obertIn the analysis of acoustic scenes, often the occurring sounds have to be detected in time, recognized, and localized in space. Usually, each of these tasks is done separately. In this paper, a model-based approach to ... -
Métodos óptimos de resolución de sistemas lineales en acústica computacional
(Universitat Politècnica de Catalunya, 2013-01-11)
Tesina
Accés restringit per decisió de l'autorEsta tesina intenta encontrar un procedimiento de resolución optimizada de los sistemas lineales resultantes de la modelización de problemas de propagación acústica de manera que las exigencias de cálculo no se conviertan ... -
Numerical simulation of aeroacoustics using the variational multiscale method : application to the problem of human phonation
(Universitat Politècnica de Catalunya, 2018-02-23)
Tesi
Accés obertThe solution of the human phonation problem applying computational mechanics is covered by several research branches, such as Computational Fluid Dynamics (CFD), biomechanics or acoustics, among others. In the present ... -
Numerical study on the influence of acoustic natural frequencies on the dynamic behaviour of submerged and confined disk-like structures
(2017-08)
Article
Accés obertThe dynamic response of disks has been deeply studied in the last years given that their dynamic characteristics present similarities with more complex disk-like structures used in real engineering applications, such as ... -
On the acoustic environment of a neonatal intensive care unit: initial description, and detection of equipment alarms
(International Speech Communication Association (ISCA), 2014)
Comunicació de congrés
Accés restringit per política de l'editorialThe acoustic environment of a typical neonatal intensive care unit (NICU) is very rich and may contain a large number of different sounds, which come either from the equipment or from the human activities taking place in ... -
Optimal design of Multiresonant Layered Acoustic Metamaterials (MLAM) via a homogenization approach
(Elsevier, 2023-10)
Article
Accés obertBroadband sound attenuation at low frequency ranges (below 500 Hz) has been a challenge in the acoustics field which cannot be solved, via conventional materials, unless impractical amounts of mass are employed. Multiresonant ... -
Prototipatge d'un sensor mesurador de nivell de so per a la millora de l'ambient d'estudi d'una biblioteca
(Universitat Politècnica de Catalunya, 2020-07-16)
Treball Final de Grau
Accés restringit per decisió de l'autorAquesta memòria engloba un projecte de prototipatge d'un sensor mesurador de nivell de so per a la millora de l'ambient d'estudi d'una biblioteca. L’objectiu del projecte és crear un prototip que sigui capaç de mesurar ... -
Radiación acústica por superficies planas: aplicación a altavoces
(Universitat Politècnica de Catalunya, 2003)
Article
Accés obertEn los sistemas de reproducción sonora es habitual la utilización de altavoces dinámicos. Sin embargo, en aplicaciones específicas, puede ser necesaria y/o conveniente la utilización de altavoces alternativos con superficies ... -
Stick-slip phenomena and acoustic emission in the Hertzian linear contact
(Multidisciplinary Digital Publishing Institute, 2022-09-22)
Article
Accés obertAE detection and analysis usually requires a specific, costly platform due to its particular burst nature and high-frequency content. This experimental study investigates the relationship between low-demand acoustic emission ... -
Synthesis procedure for ladder acoustic wave filters starting in series resonator
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertThis work provides a new procedure to synthesize acoustic wave ladder filters starting with series resonators. The novelty of this method relies in a new synthesis methodology to extract a series inductance in filter ... -
Ultrasonic evaluation of bearing steel cleanliness according to ASTM E588 and SEP 1927
(Universitat Politècnica de Catalunya, 2010-05-11)
Projecte/Treball Final de Carrera
Accés restringit per acord de confidencialitat -
Voice coil inter-turn faults modeling and simulation
(2012)
Comunicació de congrés
Accés restringit per política de l'editorialThe purpose of this paper is to present a new model to study intern-turn short circuit faults in a dynamic loudspeaker. The loudspeaker is modeled by using classical voice coil parametric model attached to a mechanical piston, ... -
Wave propagation problems with aeroacoustic applications
(Universitat Politècnica de Catalunya, 2015-05-08)
Tesi
Accés obertThe present work is a compilation of the research produced in the field of wave propagation modeling. It contains in-depth analysis of stability, convergence, dispersion and dissipation of spatial, temporal and spatial-temporal ...