Eficiência e desempenho operacional de máquinas harvester e forwarder na colheita florestal
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Data
2012-06-02
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Editor
Universidade Federal de Goiás
Resumo
The knowledge on productive capacity and variable
elements that affect machines efficiency is essential for
optimizing operations in forest harvesting. This study aimed
to evaluate Harvester and Forwarder machines efficiency and
operational performance, for forest exploitation, in the south
of the Bahia State, Brazil. Data concerning the number of
programmed and effective working hours, as well as reasons
for machine downtime, were collected from historical archives,
from October 2010 to September 2011. Based on these data,
the total working hours, operational efficiency, and mechanical
availability were calculated. Harvester machines showed an
average of total working hours of 480 hours and 18 minutes, being
75.6% (363.2 hours) of effective work and 24.4% (117.1 hours)
of downtime. Forwarder machines showed an average of total
working hours of 481 hours and 36 minutes, being 84.7% (407.9
hours) of effective work and 15.3% (73.7 hours) of downtime. The
average operational efficiency was of 73.2%, for the Harvester,
and 82.2%, for the Forwarder, and technical downtimes, such
as displacements and corrective and preventive maintenances,
comprised the main reason for explaining those values. The
machines operational performance showed to be adequate,
according to time distribution, with 76% and 85% of effective
working time, respectively for the Harvester and Forwarder, and
an average of 89% for mechanical availability, for both machines,
which showed satisfactory operational efficiency (above 70%).
Descrição
Palavras-chave
Máquinas florestais, Colheita de madeira, Exploração florestal, Forestry machines, Timber harvesting, Forest exploitation
Citação
LINHARES, Mariana; SETTE JÚNIOR, Carlos Roberto; CAMPOS, Fernando; YAMAJI, Fábio Minoru. Eficiência e desempenho operacional de máquinas harvester e forwarder na colheita florestal. Pesquisa Agropecuária Tropical, Goiânia, v. 42, n. 2, p. 212–219, abr./jun. 2012. Disponível em: https://revistas.ufg.br/pat/article/view/16921. Acesso em: 10 out. 2022.