Impact of downtime pattern on mining machinery efficiency
2021
Аутори
Misita, MirjanaSpasojević Brkić, Vesna
Brkić, Aleksandar
Kirin, Snežana
Rakonjac, Ivan
Damjanović, Milanko
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper, problem of mining machinery efficiency is considered through impact of different types of downtimes. New methodology is suggested based on comparison impact of mechanical and technological mining machinery time in fault (M-t, T-t) and mechanical and technological mining machinery downtime frequencies (M-f, T-f) on machine work done (W). Benchmarking analysis is conducted by pairing variables M-t-W, T-t-W, M-f-W and T-f-W, and determining relationships between observed variables. By comparing the increment of the cumulative downtime curve with the cumulative curve of the machine's operating volume, it can be assessed whether the observed downtime develops a concave or convex character of the operating volume cumulative curve, in respect to significant losses. Results indicate that the relationship between cumulative downtime curve and cumulative work done curve can successfully serve as a parameter for evaluating the impact of specific downtime on the efficiency of the ma...chine. A multi-criteria analysis, namely, an analysis of the criteria - frequency and time spent in downtime for each of the observed causes of downtime, clearly determines the critical pattern of downtime on the efficiency of the observed machine.
Кључне речи:
mining machine / machine efficiency / fault diagnosticsИзвор:
Structural Integrity and Life, 2021, 21, 1, 29-35Издавач:
- Institut za ispitivanje materijala, Beograd
Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of Serbia [E!13300]
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Институција/група
Inovacioni centarTY - JOUR AU - Misita, Mirjana AU - Spasojević Brkić, Vesna AU - Brkić, Aleksandar AU - Kirin, Snežana AU - Rakonjac, Ivan AU - Damjanović, Milanko PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3636 AB - In this paper, problem of mining machinery efficiency is considered through impact of different types of downtimes. New methodology is suggested based on comparison impact of mechanical and technological mining machinery time in fault (M-t, T-t) and mechanical and technological mining machinery downtime frequencies (M-f, T-f) on machine work done (W). Benchmarking analysis is conducted by pairing variables M-t-W, T-t-W, M-f-W and T-f-W, and determining relationships between observed variables. By comparing the increment of the cumulative downtime curve with the cumulative curve of the machine's operating volume, it can be assessed whether the observed downtime develops a concave or convex character of the operating volume cumulative curve, in respect to significant losses. Results indicate that the relationship between cumulative downtime curve and cumulative work done curve can successfully serve as a parameter for evaluating the impact of specific downtime on the efficiency of the machine. A multi-criteria analysis, namely, an analysis of the criteria - frequency and time spent in downtime for each of the observed causes of downtime, clearly determines the critical pattern of downtime on the efficiency of the observed machine. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Impact of downtime pattern on mining machinery efficiency EP - 35 IS - 1 SP - 29 VL - 21 UR - https://hdl.handle.net/21.15107/rcub_machinery_3636 ER -
@article{ author = "Misita, Mirjana and Spasojević Brkić, Vesna and Brkić, Aleksandar and Kirin, Snežana and Rakonjac, Ivan and Damjanović, Milanko", year = "2021", abstract = "In this paper, problem of mining machinery efficiency is considered through impact of different types of downtimes. New methodology is suggested based on comparison impact of mechanical and technological mining machinery time in fault (M-t, T-t) and mechanical and technological mining machinery downtime frequencies (M-f, T-f) on machine work done (W). Benchmarking analysis is conducted by pairing variables M-t-W, T-t-W, M-f-W and T-f-W, and determining relationships between observed variables. By comparing the increment of the cumulative downtime curve with the cumulative curve of the machine's operating volume, it can be assessed whether the observed downtime develops a concave or convex character of the operating volume cumulative curve, in respect to significant losses. Results indicate that the relationship between cumulative downtime curve and cumulative work done curve can successfully serve as a parameter for evaluating the impact of specific downtime on the efficiency of the machine. A multi-criteria analysis, namely, an analysis of the criteria - frequency and time spent in downtime for each of the observed causes of downtime, clearly determines the critical pattern of downtime on the efficiency of the observed machine.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Impact of downtime pattern on mining machinery efficiency", pages = "35-29", number = "1", volume = "21", url = "https://hdl.handle.net/21.15107/rcub_machinery_3636" }
Misita, M., Spasojević Brkić, V., Brkić, A., Kirin, S., Rakonjac, I.,& Damjanović, M.. (2021). Impact of downtime pattern on mining machinery efficiency. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 21(1), 29-35. https://hdl.handle.net/21.15107/rcub_machinery_3636
Misita M, Spasojević Brkić V, Brkić A, Kirin S, Rakonjac I, Damjanović M. Impact of downtime pattern on mining machinery efficiency. in Structural Integrity and Life. 2021;21(1):29-35. https://hdl.handle.net/21.15107/rcub_machinery_3636 .
Misita, Mirjana, Spasojević Brkić, Vesna, Brkić, Aleksandar, Kirin, Snežana, Rakonjac, Ivan, Damjanović, Milanko, "Impact of downtime pattern on mining machinery efficiency" in Structural Integrity and Life, 21, no. 1 (2021):29-35, https://hdl.handle.net/21.15107/rcub_machinery_3636 .