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Gupta, Supraksh
- Reliability, Availability And Maintainability (RAM) Analysis of a Dragline
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1 Indian Institute of Technology (BHU), IN
1 Indian Institute of Technology (BHU), IN
Source
Journal of Mines, Metals and Fuels, Vol 68, No 2 (2020), Pagination: 68-77Abstract
Dragline is one of the crucial heavy earth moving machines (HEMM) which is used in opencast mine. It has significant role in opencast mine to improve the overall production and remove the overburden; performance of dragline depends on the reliability, availability and maintainability (RAM) of the subsystems.The regular or irregular occurrence of failures affects the performance of dragline and sudden failure of any component will stop the functioning which impacts on the huge loss in terms of production and financial. Also, it may be catastrophic for personnel who are working around or on it. The aim of this paper is to investigate the RAM of the critical components and subsystems of dragline using the failure and repair time data. The trend and serial correlation tests have been used to determine that dataare independent and identically distributed (IID) or not and the statistical techniques have been applied for RAM modelling. For improving the reliability of dragline, reliability-based preventive maintenance method has been used.Keywords
Reliability, Availability, Maintainability, Statistical Model, IID, Dragline.References
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