RAM MODELING OF ELECTRICAL SYSTEM OF EARTH PRESSURE BALANCE TUNNEL BORING MACHINE

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AMINIKHOSHALAN H.; TORABI S.R.; SEIF PANAHI K.; RAZIFARD M.

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Paper Information

Journal: JOURNAL OF MINERAL RESOURCES ENGINEERING Year:2017 | Volume:2 | Issue:2 Page(s): 1-10

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Title

RAM MODELING OF ELECTRICAL SYSTEM OF EARTH PRESSURE BALANCE TUNNEL BORING MACHINE

Author(s)

AMINIKHOSHALAN H. | TORABI S.R. | SEIF PANAHI K. | RAZIFARD M. | Issue Writer Certificate

Keywords

EPB-TBM

ELECTRICAL SYSTEM

RELIABILITY

AVAILABILITY

MAINTAINABILITY

Abstract

Nowadays, earth pressure balance tunnel boring machines (EPB-TBMs) are favorably used in urban mechanized tunneling projects. The AVAILABILITY of these machines is rather low, so their performance, time planning, maintenance scheduling and cost control may need further improvements. The RELIABILITY, AVAILABILITY and MAINTAINABILITY (RAM) of any machine could be analyzed by evaluating the actual performance of that machine or system and thereby minimizing maintenance costs. In current research work, RAM analysis of the ELECTRICAL SYSTEM of the EPB-TBM in line 1 of Tabriz metro in Iran is performed. For this investigation, failure and repair data were collected during about 26 months of machine operation. Statistical tests including trend and serial correlation tests indicated that the data are independently distributed, consequently the statistical technique was used for modeling. The data analysis also revealed that the time between failures (TBFs) and time to repairs (TTRs) data fit to the Lognormal (3P) and Gamma (3P) distributions, respectively. RELIABILITY analysis showed that there is approximately 80.1% chance for the ELECTRICAL SYSTEM of TBM machine to be operational for 15 h without any failure. Moreover, the MAINTAINABILITY curve indicated that most of the failures have been repaired in less than 1 hour and that it is more likely that 80% of these failures would be repaired in 1.88h. Also the AVAILABILITY of ELECTRICAL SYSTEM of this machine is found to be equal to 97.8%.

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APA: Copy

AMINIKHOSHALAN, H., TORABI, S.R., SEIF PANAHI, K., & RAZIFARD, M.. (2017). RAM MODELING OF ELECTRICAL SYSTEM OF EARTH PRESSURE BALANCE TUNNEL BORING MACHINE. JOURNAL OF MINERAL RESOURCES ENGINEERING, 2(2 ), 1-10. SID. https://sid.ir/paper/265424/en

Vancouver: Copy

AMINIKHOSHALAN H., TORABI S.R., SEIF PANAHI K., RAZIFARD M.. RAM MODELING OF ELECTRICAL SYSTEM OF EARTH PRESSURE BALANCE TUNNEL BORING MACHINE. JOURNAL OF MINERAL RESOURCES ENGINEERING[Internet]. 2017;2(2 ):1-10. Available from: https://sid.ir/paper/265424/en

IEEE: Copy

H. AMINIKHOSHALAN, S.R. TORABI, K. SEIF PANAHI, and M. RAZIFARD, “RAM MODELING OF ELECTRICAL SYSTEM OF EARTH PRESSURE BALANCE TUNNEL BORING MACHINE,” JOURNAL OF MINERAL RESOURCES ENGINEERING, vol. 2, no. 2 , pp. 1–10, 2017, [Online]. Available: https://sid.ir/paper/265424/en

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