Multilevel evaluation of functional safety of dump trucks during operation in open pit mines

The article discusses functional safety of dump trucks during operation in open pit mines. The fault statistics analysis shows that failure of components of electric equipment is conditioned by extreme operating conditions of dump trucks exposed to impact of aggressive factors: great temperature fluctuations, high dust content and humidity, as well heavy heat and vibration loading. The goal of the research is to ensure efficient functioning of a transportation process system and recovery of dump trucks within the assigned time through justification of rational parameters of the system under consideration by way of modeling and evaluation of functional safety at minimized cost of construction and operation of this system. The goal achievement includes solution of a scientific problem connected with the development of a set of interconnected models and procedures for substantiating rational parameters of functional safety of the system on the basis of functional safety modeling and evaluation. These rational parameters should ensure efficient function of the system within the preset time period and at the minimum cost. This study used an integrated approach including the system analysis, theory of graphs, methods of expert evaluations and the analysis of hierarchies. The procedure developed for the quantitative evaluation of the functional safety recovery efficiency takes into account external and internal influences. 

Safiullin R. N., Safiullin R. R., Hohlov A. V. Multilevel evaluation of functional safety of dump trucks during operation in open pit mines. MIAB. Mining Inf. Anal. Bull. 2026;(2):28-46. [In Russ]. DOI: 10.25018/0236_1493_2026_2_0_28.

R.N. Safiullin¹, Dr. Sci. (Eng.), Professor, e-mail: safravi@mail.ru, ORCID ID: 0000-0002-8765-6461,
R.R. Safiullin¹, Cand. Sci. (Eng.), Associate Professor, e-mail: safiullin_rr@pers.spmi.ru, ORCID ID: 0000-0003-2315-3678, 
A.V. Hohlov¹, Graduate Student, e-mail: lehasport98@mail.ru, ORCID ID: 0000-0002-2771-1318,
¹ Empress Catherine II Saint-Petersburg Mining University, 199026, Saint-Petersburg, Russia.

A.V. Hohlov, e-mail: lehasport98@mail.ru.

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