The paper presents a new approach in risk analysis, using
the finite element concepts in order to improve and optimise this analysis.
The focus of risk analysis on a finite element of the
work place( where all the risk elements could be found) will allow a
quantitative representation of risk action, taking into account all the four
elements of the man-machine system (human operator, task, machine and work environment)
and will contribute to a better understanding of specific risk actions.It will
also lead towards a global risk image at
the enterprise level, in order to have the optimum data to develop efficient
prevention plans.Formalisation equations are shown in the paper.
An orientative Finite Risk Element schema is shown in the
figure 1.
Figure 1-Finite Risk Element
The risk interactions between the elements of man machine
system could be expressed considering an observer in a specific observation
point (human operator, task, machine, work environment) and following the other
elements interactions with this point .For example, Ri_task=(Ri_task-human
operator,Ri_task-machine,Ri_task-work environment) = (4,2,3.5) .
The paper presents also some aspects regarding the
practical possibilities offered by this approach. The development of this
method would be extremely usefull in order to be able to quantify specific
risks action, especially in the process industry where the risks implying human
operator and task are not well formalised.
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