Open AccessPROVIDING RELIABLE OPERATION OF ERGOTECHNICAL SYSTEM: RELIABILITY OF A SHIP POWER PLANT AND ITS OPERATOR
Author(s) -
Irina Vasiljevna Gerasimova,
Dmitry Konstantinovich Glazyk
Publication year - 2019
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: morskaâ tehnika i tehnologiâ
Language(s) - English
Resource type - Journals
eISSN - 2225-0352
pISSN - 2073-1574
DOI - 10.24143/2073-1574-2019-3-73-79
Subject(s) - reliability (semiconductor) , human reliability , operator (biology) , reliability engineering , task (project management) , computer science , component (thermodynamics) , human error , relation (database) , risk analysis (engineering) , power (physics) , operations research , engineering , systems engineering , data mining , biochemistry , physics , chemistry , repressor , quantum mechanics , transcription factor , gene , medicine , thermodynamics
The article highlights the ergotechnical system as a complex including two major components: a technical component and a human operator. It is a quite common event for many engineering devices, including different types of transport. Today studying the reliability of the system operation is quite important. The results of the experiment conducted to study the reliability of ship power plants (SPP) and their elements on ships have been presented. The study was aimed at revealing psycho-physiological characteristics of a mechanical engineer on watch, who was identified as a subject of labor. The possible methods for diagnosing the psycho-physiological functions of a SPP operator have been listed. The quantitative assessment of the qualitative parameters of interacting between the human operator and the technical environment (SPP complex) has been made. The operator’s reliability is defined as a probability of successful completion of a task. Definitions of professional and functional reliability are given. The functional reliability is stated to play a primary role in ensuring professional reliability. Special attention is paid to the analysis of operator’s errors and the error sources. The probability of errors can be avoided or reduced by considering the individual psychological and physiological characteristics of the operators while training and selection. As a result of the study, the relation between factors affecting the reliability of the ergotechnical system of the power plant as a whole has been found. The most important criteria for optimizing the work of a human operator as a subject of activity are stated the experience and qualification along with a high level of voluntary attention. The study is related to the interdisciplinary researches, it was attended by specialists of different profiles.