Elaboration of stochastic models to comprehensive evaluation of occupational risks in complex dynamic systems

• Autorzy: Bochkovskyi A. P.

Identyfikatory

DOI

10.5604/01.3001.0014.8484

• Języki publikacji: EN

Abstrakty

EN

Purpose: Elaborate stochastic models to comprehensive evaluation of occupational risks in “man - machine - environment” systems taking into account the random and dynamic nature of the impact on the employee of negative factors over time. Design/methodology/approach: Within study, the methods of probability theory and the theory of Markov processes - to find the limit distribution of the random process of dynamic impact on the employee of negative factors over time and obtain main rates against which the level of occupational risks within the "man - machine - environment" systems can be comprehensively evaluated; Erlang phases method, Laplace transform, difference equations theory, method of mathematical induction - to elaborate a method of analytical solution of the appropriate limit task for a system of differential equations in partial derivatives and appropriate limit conditions were used. Findings: A system of differential equations in partial derivatives and relevant limit conditions is derived, which allowed to identify the following main rates for comprehensive evaluation of occupational risks in systems "man - machine - environment": probability of excess the limit of the employee's accumulation of negative impact of the harmful production factor; probability of the employee’s injury of varying severity in a random time. An method to the solution the limit task for a system of differential equations, which allows to provide a lower bounds of the probability of a certain occupational danger occurrence was elaborated. Research limitations/implications: The elaborated approach to injury risk evaluation is designed to predict cases of non-severe injuries. At the same time, this approach allows to consider more severe cases too, but in this case the task will be more difficult. Practical implications: The use of the elaborated models allows to apply a systematic approach to the evaluation of occupational risks in enterprises and to increase the objectivity of the evaluation results by taking into account the real characteristics of the impact of negative factors on the employee over time. Originality/value: For the first time, a special subclass of Markov processes - Markov drift processes was proposed and substantiated for use to comprehensive evaluation of occupational risks in “man - machine - environment” systems.

Słowa kluczowe

EN

safety management; health management; dynamic systems; Markov drift processes; risk evaluation; occupational risk

PL

zarządzanie bezpieczeństwem; zarządzanie zdrowiem; układy dynamiczne; procesy Markova; modele stochastyczne; ocena ryzyka; ryzyko zawodowe

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2021
• Tom: Vol. 104, nr 1
• Strony: 31--41
• Opis fizyczny: Bibliogr. 24 poz.

Twórcy

autor

Bochkovskyi A. P.

• Department of Systems Management Life Safety, Odessa National Polytechnic University, 1 Shevchenko Ave., Odessa, 65044, Ukraine

• https://orcid.org/0000-0002-4166-3148++

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).