SOUND POWER LEVEL EMITTED BY AGRICULTURAL TRACTOR UNDER STATIC AND DINAMIC CONDITIONS
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
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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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 |
_version_ |
1799874817614151680 |