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Vibration and Noise Transmitted by Agricultural Backpack Powered Machines Critically Examined Using the Current Standards

Author

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  • Angela Calvo

    (DISAFA (Department of Agricultural, Forest and Food Sciences and Technologies), Largo P. Braccini 2, 10095 Turin, Italy)

  • Christian Preti

    (IMAMOTER Institute for Agricultural and Earth-moving Machines of C.N.R (Italian National Research Council), Strada delle Cacce 73, 10135 Turin, Italy)

  • Maria Caria

    (Dipartimento di Ingegneria del Territorio, Sezione di Meccanizzazione e Impiantistica, Viale Italia 39, 07100 Sassari, Italy)

  • Roberto Deboli

    (IMAMOTER Institute for Agricultural and Earth-moving Machines of C.N.R (Italian National Research Council), Strada delle Cacce 73, 10135 Turin, Italy)

Abstract

European Directives 2002/44/EC and 2003/10/EC establish the exposure limit values for preventing operators’ risks to vibration and noise transmitted by machines. Few studies studied noise and vibration of agricultural backpack powered machines (as mist blowers and blowers), but nobody critically studied them. This work analyzed the field back vibration, hand-arm vibration (HAV), and noise transmitted to ten operators by eight blowers and mist blowers. Unweighted and weighted vibration were analyzed, using the standards ISO 2631-1 (back), and ISO 5349-1 and ISO/TR 18570 (hand-arm system). The noise was evaluated by recording the acoustic pressure level at the operators’ ears using the ISO 9612. With the ISO 2631-1, the vibration to the operators’ back was low (0.38 ms −2 ), but the unweighted vibration measured along y and z -axes (not used by the ISO 2631-1) were high (>11 ms −2 ). HAV were also low when using the ISO 5349-1 (the highest value was 2.51 ms −2 in mist blowers), but high with the ISO/TR 18570 for the onset of vibration white finger (1446 ms −1.5 in blowers). Noise levels were always high: more than 100 dB(A), excluding the blower with the exhaust inside the blower hose. This last machine had noise levels lower than 86 dB(A), but its specific feature could increase environmental pollution.

Suggested Citation

  • Angela Calvo & Christian Preti & Maria Caria & Roberto Deboli, 2019. "Vibration and Noise Transmitted by Agricultural Backpack Powered Machines Critically Examined Using the Current Standards," IJERPH, MDPI, vol. 16(12), pages 1-20, June.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:12:p:2210-:d:242089
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    References listed on IDEAS

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    1. Matías Salibián-Barrera & Stefan Aelst & Gert Willems, 2008. "Fast and robust bootstrap," Statistical Methods & Applications, Springer;Società Italiana di Statistica, vol. 17(1), pages 41-71, February.
    2. Salibian-Barrera, Matias & Van Aelst, Stefan, 2008. "Robust model selection using fast and robust bootstrap," Computational Statistics & Data Analysis, Elsevier, vol. 52(12), pages 5121-5135, August.
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    Cited by:

    1. Raquel Nieto-Álvarez & María L. de la Hoz-Torres & Antonio J. Aguilar & María Dolores Martínez-Aires & Diego P. Ruiz, 2022. "Proposal of Combined Noise and Hand-Arm Vibration Index for Occupational Exposure: Application to a Study Case in the Olive Sector," IJERPH, MDPI, vol. 19(21), pages 1-23, November.

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    Keywords

    vibration; noise; blower; mist blower;
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