SciELO - Scientific Electronic Library Online

vol.30 número1Diversidad de arañas (Arthropoda: Araneae) en cultivo de almendros Prunus dulcis (Mill.) D.A. Webb en la Región Metropolitana de Chile (Chile Central)Efecto del ácido abscísico sobre la maduración en olivos var. Arbequina índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados


Idesia (Arica)

versão On-line ISSN 0718-3429


DA CUNHA, João Paulo Arantes Rodrigues; VIANA DUARTE, Marcus Antonio  e  DE SOUZA, Cristiano Márcio Alves. Vibration and noise levels emitted by two tractors. Idesia [online]. 2012, vol.30, n.1, pp.25-34. ISSN 0718-3429.

Tractor driving imposes a lot of physical and mental stress upon the operator. The aim of this work was to evaluate the vibration and noise levels emitted by tractors with different ages, under different motor rotations (1700, 1850 and 2000 rpm). In the evaluations, two agricultural tractors (a 1988 model year with 60.35 kW of power and a 2009 model year with 89.06 kW), without cabin were used, working with a plough. The noise evaluations were made with a sound level meter, in the driver's position. The vibration evaluations were made on the driving seat using an automatic acquisition data system with three accelerometers, in the vertical and horizontal planes. The results showed that the service with the tractors presented noise levels higher than the 85 dB(A) limit for 8 hours of daily exposure, established by the Brazilian Legislation on insalubrity. The need of hearing protection device use by the machine operators was observed. The older tractor presented vibration levels that could compromise health, safety, comfort and efficiency of the driver. This not occurs for the newer tractor.

Palavras-chave : agricultural machines; ergonomics; occupational healthy.

        · resumo em Português     · texto em Português     · Português ( pdf )


Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons