Metallurgical Plant and the “Buncy Steel” Steel Mill, which have a cooperation
agreement among themselves [5].
The subject of the research was an ergonomic provision of optimization of rolling-
mill operators` activity and its correlation with the production efficiency of socio-
technical systems (see the figure). The psychological, physiological and
psychophysiological factors of intensification of metallurgical production
technological processes were studied.
The purpose of the research is to define the influence features of ergonomic and
psychological factors on the activity efficiency of continuous broadband rolling mill
operators in the conditions of metallurgical enterprises modernization of the two
countries.
Methodology. The hypothesis of the research is that the directed influence
organization of psychological factors allows optimizing the operators` activity and thus
increasing the efficiency of modern socio-technical system of rolling mill production.
The first group of methods contains a traditional job analysis including
observations, interviews and conversations with experts; an analysis of fabrication
documentation and official instructions and regulations; an identification of metal
processing mode violations by operators, emergency situations and production idle
times. The age of operators, their sex and length of service were recorded.
The survey was carried out to determine the subjective attitude of operators
toward the objective factors of technological process modernization, which affect upon
the occupational stress and psychological tension occurring in the workplace, and to
identify the main motivational aspects of operator`s activity.
An algorithmic analysis of the operators` activity was based on the observation
and examination of the fabrication documentation. A control algorithm analysis on the
rolling mills of the same type of ingots was carried out according to the standard
compression program. The purpose of the analysis was to compare quantitative
characteristics of the operator`s activity on the control of the main electric drive and
the associated machinery.
We haven`t only used the algorithm characteristics to estimate the cognitive
complexity of the algorithm. The data obtained as a result of the operators` activities
analysis were also considered. The heart rate (HR) and adjusted hand tremor data were
used to assess the dynamics of the operator functional state. The dynamics of the heart
rates was considered in the research as an integral characteristic of the functional
tension of the organism in productive work, which is followed by psychoemotional
excitement.
The heart rate measurement was carried by electrocardiography. The frequency
of hand tremor was measured by a digital tremometer.
Hand dynamometry was used as an indicator of operators` fatigue.
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