Acoustic Radiation Pressure
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Numerical Study of Vibro-Acoustic Responses of Un-Baffled Multi-Layered Composite Structure under Various End Conditions and Experimental Validation
Abstract This article presents the vibro-acoustic modeling and analysis of un-baffled laminated composite flat panels subjected to harmonic point load under various support conditions. The frequency values of the panel are obtained by using simulation model through the commercial finite element package (ANSYS) via batch input technique. Initially, the rate o
Lat. Am. j. solids struct.. Publicado em: 2017-08
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2. Simulação de um arranjo esférico de alto-falantes usando um modelo de membrana flexível / Simulation of a spherical loudspeaker array using a flexible membrane model
Duas abordagens para a simulação do campo sonoro produzido por um arranjo esférico de alto-falantes são apresentadas e comparadas a resultados experimentais. Na primeira, modos estruturais obtidos da analise modal experimental da membrana são usados em simulações vibroacusticas por elementos de contorno no software LMS Virtual.Lab®. Na segunda, adota
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2010
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3. MECHANISM, BEHAVIOR AND EVOLUTION OF CALLING IN FOUR NORTH AMERICAN TREEFROGS / Mecanismos de produção de som em anfíbios norte americanos: biomecânica, comportamento e evolução
Acoustic communication in frogs is an important model system for the study of behavioral evolution in vertebrates. This study aimed to extend the current model on the mechanism of calling in frogs in order to strengthen the bridge between behavioral and physiological knowledge in the field. The limits and tradeoffs of sound production by the passive larynx w
Publicado em: 2003
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4. Vibro-acoustography: An imaging modality based on ultrasound-stimulated acoustic emission
We describe theoretical principles of an imaging modality that uses the acoustic response of an object to a highly localized dynamic radiation force of an ultrasound field. In this method, named ultrasound-stimulated vibro-acoustography (USVA), ultrasound is used to exert a low-frequency (in kHz range) force on the object. In response, a portion of the objec
The National Academy of Sciences.