Modal analysis of computational guitar model using finite elements and impulse excitation method
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/12491 |
Resumo: | A guitar is constructed essentially of wood. However, each wood brings with it some specific characteristics. Its acoustic behavior is related to the elastic properties of the materials that compose it. It is known that the elastic properties of materials interfere not only in their mechanical resistance, but also in their dynamic behavior; a structure can vibrate more or less intensely depending on the material that composes it and its elastic properties. The present work analyzes the dynamic behavior of a computational guitar model through modal analysis calculated by the finite element method (MEF) applying boundary conditions that simulate the stiffness of the lateral bands and the tension of the strings on the easel and neck, obtaining answers in terms of natural frequencies and the corresponding forms of vibration modes. And so, compare with frequency responses obtained experimentally through the method of pulse excitation. The results show that the responses in numerical natural frequencies are similar to the values obtained experimentally, indicative of belonging to the same mode of vibration. |
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Modal analysis of computational guitar model using finite elements and impulse excitation method Análisis modal del modelo computacional de guitarra usando elementos finitos y método de excitación por impulso Análise modal de modelo computacional de violão usando elementos finitos e método de excitação por impulsoGuitarraElementos finitosFrecuencias naturalesImpulsoModo de vibración.ViolãoElementos finitosFrequências naturaisImpulsoModo de vibração.GuitarFinite elementsNatural frequenciesImpulseVibration mode.A guitar is constructed essentially of wood. However, each wood brings with it some specific characteristics. Its acoustic behavior is related to the elastic properties of the materials that compose it. It is known that the elastic properties of materials interfere not only in their mechanical resistance, but also in their dynamic behavior; a structure can vibrate more or less intensely depending on the material that composes it and its elastic properties. The present work analyzes the dynamic behavior of a computational guitar model through modal analysis calculated by the finite element method (MEF) applying boundary conditions that simulate the stiffness of the lateral bands and the tension of the strings on the easel and neck, obtaining answers in terms of natural frequencies and the corresponding forms of vibration modes. And so, compare with frequency responses obtained experimentally through the method of pulse excitation. The results show that the responses in numerical natural frequencies are similar to the values obtained experimentally, indicative of belonging to the same mode of vibration.Una guitarra está construida esencialmente de madera. Sin embargo, cada madera trae consigo algunas características específicas. Su comportamiento acústico está relacionado con las propiedades elásticas de los materiales que lo componen. Se sabe que las propiedades elásticas de los materiales interfieren no solo en su resistencia mecánica, sino también en su comportamiento dinámico; una estructura puede vibrar de forma más o menos intensa según el material que la componga y sus propiedades elásticas. El presente trabajo analiza el comportamiento dinámico de un modelo computacional de guitarra mediante análisis modal calculado por el método de elementos finitos (MEF) aplicando condiciones de contorno que simulan la rigidez de las bandas laterales y la tensión de las cuerdas en el caballete y el mástil, obteniendo respuestas en términos de frecuencias naturales y las correspondientes formas de modos de vibración. Y así, compare con las respuestas de frecuencia obtenidas experimentalmente mediante el método de excitación de pulsos. Los resultados muestran que las respuestas en frecuencias naturales numéricas son similares a los valores obtenidos experimentalmente, indicativos de pertenencia a un mismo modo de vibración.Um violão é construído essencialmente de madeira. Porém, cada madeira traz consigo algumas características específicas. O seu comportamento acústico está relacionado às propriedades elásticas dos materiais que o compõem. Sabe-se que as propriedades elásticas dos materiais interferem não apenas em sua resistência mecânica, mas também em seu comportamento dinâmico; uma estrutura pode vibrar de forma mais ou menos intensa dependendo do material que a compõe e de suas propriedades elásticas. O presente trabalho analisa o comportamento dinâmico de um modelo computacional de violão através de análises modais calculadas pelo método de elementos finitos (MEF) aplicando condições de contorno que simulam a rigidez das faixas laterais e a tensão das cordas no cavalete e braço obtendo respostas em termos de frequências naturais e as correspondentes formas dos modos de vibração. E assim, comparar com respostas em frequência obtidas experimentalmente através do método de excitação por impulso. Os resultados mostram que as respostas em frequências naturais numéricas se assemelham com os valores obtidos experimentalmente, indicativo de pertencerem a um mesmo modo de vibração.Research, Society and Development2021-02-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1249110.33448/rsd-v10i2.12491Research, Society and Development; Vol. 10 No. 2; e24410212491Research, Society and Development; Vol. 10 Núm. 2; e24410212491Research, Society and Development; v. 10 n. 2; e244102124912525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/12491/11227Copyright (c) 2021 Paulo Sérgio Teixeira; José Flávio Silveira Feiteira; Rangel de Paula Almeida; Alexandre Furtado Ferreirahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessTeixeira, Paulo SérgioFeiteira, José Flávio SilveiraAlmeida, Rangel de Paula Ferreira, Alexandre Furtado2021-03-02T09:32:39Zoai:ojs.pkp.sfu.ca:article/12491Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:34:03.193188Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Modal analysis of computational guitar model using finite elements and impulse excitation method Análisis modal del modelo computacional de guitarra usando elementos finitos y método de excitación por impulso Análise modal de modelo computacional de violão usando elementos finitos e método de excitação por impulso |
| title |
Modal analysis of computational guitar model using finite elements and impulse excitation method |
| spellingShingle |
Modal analysis of computational guitar model using finite elements and impulse excitation method Teixeira, Paulo Sérgio Guitarra Elementos finitos Frecuencias naturales Impulso Modo de vibración. Violão Elementos finitos Frequências naturais Impulso Modo de vibração. Guitar Finite elements Natural frequencies Impulse Vibration mode. |
| title_short |
Modal analysis of computational guitar model using finite elements and impulse excitation method |
| title_full |
Modal analysis of computational guitar model using finite elements and impulse excitation method |
| title_fullStr |
Modal analysis of computational guitar model using finite elements and impulse excitation method |
| title_full_unstemmed |
Modal analysis of computational guitar model using finite elements and impulse excitation method |
| title_sort |
Modal analysis of computational guitar model using finite elements and impulse excitation method |
| author |
Teixeira, Paulo Sérgio |
| author_facet |
Teixeira, Paulo Sérgio Feiteira, José Flávio Silveira Almeida, Rangel de Paula Ferreira, Alexandre Furtado |
| author_role |
author |
| author2 |
Feiteira, José Flávio Silveira Almeida, Rangel de Paula Ferreira, Alexandre Furtado |
| author2_role |
author author author |
| dc.contributor.author.fl_str_mv |
Teixeira, Paulo Sérgio Feiteira, José Flávio Silveira Almeida, Rangel de Paula Ferreira, Alexandre Furtado |
| dc.subject.por.fl_str_mv |
Guitarra Elementos finitos Frecuencias naturales Impulso Modo de vibración. Violão Elementos finitos Frequências naturais Impulso Modo de vibração. Guitar Finite elements Natural frequencies Impulse Vibration mode. |
| topic |
Guitarra Elementos finitos Frecuencias naturales Impulso Modo de vibración. Violão Elementos finitos Frequências naturais Impulso Modo de vibração. Guitar Finite elements Natural frequencies Impulse Vibration mode. |
| description |
A guitar is constructed essentially of wood. However, each wood brings with it some specific characteristics. Its acoustic behavior is related to the elastic properties of the materials that compose it. It is known that the elastic properties of materials interfere not only in their mechanical resistance, but also in their dynamic behavior; a structure can vibrate more or less intensely depending on the material that composes it and its elastic properties. The present work analyzes the dynamic behavior of a computational guitar model through modal analysis calculated by the finite element method (MEF) applying boundary conditions that simulate the stiffness of the lateral bands and the tension of the strings on the easel and neck, obtaining answers in terms of natural frequencies and the corresponding forms of vibration modes. And so, compare with frequency responses obtained experimentally through the method of pulse excitation. The results show that the responses in numerical natural frequencies are similar to the values obtained experimentally, indicative of belonging to the same mode of vibration. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-02-14 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/12491 10.33448/rsd-v10i2.12491 |
| url |
https://rsdjournal.org/index.php/rsd/article/view/12491 |
| identifier_str_mv |
10.33448/rsd-v10i2.12491 |
| dc.language.iso.fl_str_mv |
por |
| language |
por |
| dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/12491/11227 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development; Vol. 10 No. 2; e24410212491 Research, Society and Development; Vol. 10 Núm. 2; e24410212491 Research, Society and Development; v. 10 n. 2; e24410212491 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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