SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS

Detalhes bibliográficos
Autor(a) principal: Alves, Aline Dantas da Silva
Data de Publicação: 2011
Outros Autores: Costa, Fernanda Rodrigues Lima da, Cortez, Jorge Wilson, Dantas, Alan Christie da Silva, Nagahama, Hideo de Jesus
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/9741
Resumo: The noise produced by farm machinery may cause hearing problems to its operators along the time. The objective of this study was to evaluate the sound power level emitted by agricultural tractor under static and dynamic conditions, in relation to the IEC651 and IEC61672 norms. It was conducted at the Universidade Federal do Vale do São Francisco, in Petrolina, Pernambuco State, Brazil, in 2009, by using a Valtra 785 TDA tractor without cabin and equipment to measure its sound power level. The measurements were: static (anterior, posterior, right, and left positions, in relation to the operator’s seat, for each meter along the maximum distance of 10 m, and different engine rotation speeds, with two measuring devices) and dynamic (five speeds on concrete and soil test tracks, with two devices). Two measurement devices were used to evaluate the sound power level. For the devices in accordance with the IEC651 and IEC62672 norms, the second one always presented higher sound power levels, due to the fact that the first one was equipped with a wind protector. In all positions, the sound power level was higher than allowed by law. As the engine rotation speed increases, the sound power level also increases. It was noticed that both test tracks can be used for sound power level analysis, due to their similar results. The tractor speed affected its sound power level, with higher values for longer gears.KEY-WORDS: Noise; ergonomics; agricultural mechanization.
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spelling SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONSNÍVEIS DE POTÊNCIA SONORA EMITIDOS POR TRATOR AGRÍCOLA EM CONDIÇÕES ESTÁTICAS E DINÂMICASNoiseergonomicsagricultural mechanizationRuídoergonomiamecanização agrícolaThe noise produced by farm machinery may cause hearing problems to its operators along the time. The objective of this study was to evaluate the sound power level emitted by agricultural tractor under static and dynamic conditions, in relation to the IEC651 and IEC61672 norms. It was conducted at the Universidade Federal do Vale do São Francisco, in Petrolina, Pernambuco State, Brazil, in 2009, by using a Valtra 785 TDA tractor without cabin and equipment to measure its sound power level. The measurements were: static (anterior, posterior, right, and left positions, in relation to the operator’s seat, for each meter along the maximum distance of 10 m, and different engine rotation speeds, with two measuring devices) and dynamic (five speeds on concrete and soil test tracks, with two devices). Two measurement devices were used to evaluate the sound power level. For the devices in accordance with the IEC651 and IEC62672 norms, the second one always presented higher sound power levels, due to the fact that the first one was equipped with a wind protector. In all positions, the sound power level was higher than allowed by law. As the engine rotation speed increases, the sound power level also increases. It was noticed that both test tracks can be used for sound power level analysis, due to their similar results. The tractor speed affected its sound power level, with higher values for longer gears.KEY-WORDS: Noise; ergonomics; agricultural mechanization.O ruído das máquinas agrícolas, com o passar do tempo, pode provocar problemas auditivos em seus operadores. O objetivo deste trabalho foi avaliar o nível de potência sonora emitido por trator agrícola, em condições estáticas e dinâmicas, comparando-o às normas IEC651 e IEC61672. O trabalho foi realizado na Universidade Federal do Vale do São Francisco, Petrolina (PE), em 2009, utilizando-se um trator Valtra, modelo 785 TDA sem cabine, e medidores do nível de potência sonora. As medições foram: estática (posições anterior, posterior, direita e esquerda do assento do operador a cada metro, até a distância máxima de 10 m, e diferentes rotações do motor, com dois equipamentos de medição) e dinâmica (cinco velocidades de deslocamento, em pista de concreto e terra batida, utilizando-se dois equipamentos de medição). Para os equipamentos que atendem às normas IEC651 e IEC61672, o segundo sempre apresentou maiores valores do nível de potência sonora, devido ao primeiro ser utilizado com protetor de vento. Em todas as condições, o nível de potência sonora foi maior do que o permitido pela legislação. À medida que se aumenta a rotação do motor, ocorre incremento no nível de potência sonora. Verificou-se que as pistas de terra batida e concreto podem ser utilizadas para análise do nível de potência sonora, devido aos resultados similares apresentados. A velocidade de deslocamento do trator influenciou no nível de potência sonora, sendo que as marchas mais longas apresentaram maiores valores. PALAVRAS-CHAVE: Ruído; ergonomia; mecanização agrícola.  Escola de Agronomia - Universidade Federal de Goiás2011-03-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimentalapplication/savehttps://revistas.ufg.br/pat/article/view/9741Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 41, n. 1, Jan./Mar. 2011; 110-119Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 41, n. 1, jan./mar. 2011; 110-119Pesquisa Agropecuária Tropical; v. 41, n. 1, jan./mar. 2011; 110-1191983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/9741/8752Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessAlves, Aline Dantas da SilvaCosta, Fernanda Rodrigues Lima daCortez, Jorge WilsonDantas, Alan Christie da SilvaNagahama, Hideo de Jesus2020-07-09T18:21:18Zoai:ojs.revistas.ufg.br:article/9741Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:49.121757Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
NÍVEIS DE POTÊNCIA SONORA EMITIDOS POR TRATOR AGRÍCOLA EM CONDIÇÕES ESTÁTICAS E DINÂMICAS
title SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
spellingShingle SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
Alves, Aline Dantas da Silva
Noise
ergonomics
agricultural mechanization
Ruído
ergonomia
mecanização agrícola
title_short SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
title_full SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
title_fullStr SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
title_full_unstemmed SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
title_sort SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
author Alves, Aline Dantas da Silva
author_facet Alves, Aline Dantas da Silva
Costa, Fernanda Rodrigues Lima da
Cortez, Jorge Wilson
Dantas, Alan Christie da Silva
Nagahama, Hideo de Jesus
author_role author
author2 Costa, Fernanda Rodrigues Lima da
Cortez, Jorge Wilson
Dantas, Alan Christie da Silva
Nagahama, Hideo de Jesus
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Alves, Aline Dantas da Silva
Costa, Fernanda Rodrigues Lima da
Cortez, Jorge Wilson
Dantas, Alan Christie da Silva
Nagahama, Hideo de Jesus
dc.subject.por.fl_str_mv Noise
ergonomics
agricultural mechanization
Ruído
ergonomia
mecanização agrícola
topic Noise
ergonomics
agricultural mechanization
Ruído
ergonomia
mecanização agrícola
description The noise produced by farm machinery may cause hearing problems to its operators along the time. The objective of this study was to evaluate the sound power level emitted by agricultural tractor under static and dynamic conditions, in relation to the IEC651 and IEC61672 norms. It was conducted at the Universidade Federal do Vale do São Francisco, in Petrolina, Pernambuco State, Brazil, in 2009, by using a Valtra 785 TDA tractor without cabin and equipment to measure its sound power level. The measurements were: static (anterior, posterior, right, and left positions, in relation to the operator’s seat, for each meter along the maximum distance of 10 m, and different engine rotation speeds, with two measuring devices) and dynamic (five speeds on concrete and soil test tracks, with two devices). Two measurement devices were used to evaluate the sound power level. For the devices in accordance with the IEC651 and IEC62672 norms, the second one always presented higher sound power levels, due to the fact that the first one was equipped with a wind protector. In all positions, the sound power level was higher than allowed by law. As the engine rotation speed increases, the sound power level also increases. It was noticed that both test tracks can be used for sound power level analysis, due to their similar results. The tractor speed affected its sound power level, with higher values for longer gears.KEY-WORDS: Noise; ergonomics; agricultural mechanization.
publishDate 2011
dc.date.none.fl_str_mv 2011-03-23
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/9741
url https://revistas.ufg.br/pat/article/view/9741
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/9741/8752
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/save
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 41, n. 1, Jan./Mar. 2011; 110-119
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 41, n. 1, jan./mar. 2011; 110-119
Pesquisa Agropecuária Tropical; v. 41, n. 1, jan./mar. 2011; 110-119
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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