Data di Pubblicazione:
2008
Citazione:
Improved database for the assessment of operator's vibration risk in agriculture / D. Pessina, D. Facchinetti, V. Bonalume - In: International Conference "Innovation Technology to Empower Safety, Health and Welfare in Agriculture and Agro-food System", Book of Abstracts / [a cura di] Sabina Failla. - Ragusa : ElleDue, 2008 Sep. - ISBN 9788890315114. - pp. 114 (( convegno Innovation Technology to Empower Safety, Health and Welfare in Agriculture and Agro-food System tenutosi a Ragusa, Italy nel 2008.
Abstract:
The European Directive 2002/44/CE includes the definitions of hand-arm and wholebody
mechanical vibrations and, among others, establishes the daily exposure limit and
action values, giving provisions related to the determination and the risks assessment.
Many studies confirmed that the vibration levels recorded in agricultural tasks are often
widely exceeding the limits, as considering the whole body action value on an 8 h
period (0.5 m/s²), as that relevant to the daily exposure (1.15 m/s²). On the other hand,
the working conditions are extremely variable, resulting from the use of many different
implements coupled with wheeled or track-laying tractors of various dimensions, engine
power, etc. Due to this extreme variability, a careful assessment of a given operator’s
vibration risk could be carried out only through direct measurements but, due to the
very high time consuming and cost requirements, this is evidently a very unlikely
occurrence. So, many attempts were carried out recently to acquire data in order to build
suitable databases.
The most frequent default of the major part of the these databases is relevant to a lack of
operating condition details, that are fundamentally affecting the vibration levels. In
particular, the following main parameters are always to be considered: tractor and
implement characteristics (or those of the self-propelled machine considered); task
performed; soil conditions; crop/material conditions to be harvested/distributed;
travelling speed; fitting of suspension devices (on the tractor, on the cab, at the driver’s
place). Taking into account all the described parameters, a series of detailed database
tables was then prepared, and the data coming from different sources (included the data
available in the ISPESL database on vibration) were introduced, in order to cover a high
number of agricultural tasks.
The results show that, as expected, in many situations not only the daily exposure action
values, but also the limit values are exceeded. Important warnings belong expecially
from ploughing, high speed transportation and front loader handling tasks, but more
data are strongly needed to cover as widely as possible the variability of the several
parameters affecting the vibration risk.
Tipologia IRIS:
03 - Contributo in volume
Keywords:
database ; vibration risk
Elenco autori:
D. Pessina, D. Facchinetti, V. Bonalume
Link alla scheda completa:
Titolo del libro:
International Conference "Innovation Technology to Empower Safety, Health and Welfare in Agriculture and Agro-food System", Book of Abstracts