INFLUENCE OF THE HARVESTER OPERATION MODE ON ERGONOMIC PARAMETERS OF OPERATORS

Q4 Environmental Science

Floresta Pub Date : 2022-10-07 DOI:10.5380/rf.v52i4.79503

Diego Weslly Ferreira do Nascimento Santos, Domingos Sárvio Magalhães Valente, H. C. Fernandes, Marconi Ribeiro Furtado Junior, Daniel Mariano Leite

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引用次数: 0

Abstract

Changes in the way of operating forest machines causes a reduction in fuel consumption, however it can affect ergonomic factors of the operators. Thus, the objective of this research was to evaluate ergonomic parameters of the operation with harvester in different modes of operation. The operating modes were obtained by changing the engine speed and flow rate of the hydraulic pump. The machine was programmed to operate at engine speeds of 2,060; 2,000; 1,950; and 1,900 rpm and hydraulic pump flow of 300; 295; 290 l min-1, totaling 12 operating modes. The research was carried out on the average tree volumes of 0.08; 0.12; and 0.16 m³ tree-1. The Acceleration values resulting from normalized exposure (Aren) and the TOR (Real Occupancy Rate) - TOMCAR (Maximum Occupancy Rate considering Repetitive Activities) were measured. The data were submitted to analysis of variance and when significant compared by the Tukey test. Changes in the machine's operating mode cause significant decreases in Aren values. A execução da operação deslocamento e busca expõem os operadores aos maiores valores de aceleração resultante de exposição normalizada. A operação com harvester se caracteriza como causadora de doenças ocupacionais. The execution of the displacement and search operation exposes operators to the highest values of acceleration resulting from normalized exposure. The operation with harvester is characterized as causing occupational diseases.

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收割机操作方式对操作人员工效学参数的影响

森林机器操作方式的改变会降低燃料消耗，但也会影响操作员的人体工程学因素。因此，本研究的目的是评估不同操作模式下收割机操作的人机工程学参数。通过改变发动机转速和液压泵的流量来获得操作模式。该机器被编程为在2060的发动机转速下运行；2000年；1950年；以及1900rpm和液压泵流量为300；295；290 l min-1，共12种操作模式。这项研究是在平均树木体积为0.08的情况下进行的；0.12；和0.16 m³树-1。测量标准化暴露产生的加速度值（Enn）和TOR（实际占用率）-TOMCAR（考虑重复活动的最大占用率）。将数据提交给方差分析，并在显著时通过Tukey检验进行比较。机器操作模式的变化会导致Enn值显著降低。歌剧院的一位执行官表示，歌剧院的运营商将为正常化的展览带来巨大的价值。歌剧收割机是一台歌剧。位移和搜索操作的执行使操作员暴露于由归一化曝光产生的加速度的最高值。收割机作业具有引发职业病的特点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Floresta Environmental Science-Nature and Landscape Conservation

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Revista Floresta admits articles of scientific contribution in Forest Science, in the areas of Nature Conservation, Economy and Forest Policy, Forest Management, Silviculture and Wood Technology. The main task is to promote and divulgate the development of Forest Science in Brazil and in the world. Articles published in Revista Floresta are under total responsibility of the authors, who are aware that they are original studies. It remains implicit that articles were not submitted for publication to any other divulgation media. It remains explicit the agreement of authors to norms of the journal and, along the development of their work, the observance of ethic aspects and respect of the current copyright legislation.