2002•Mining Technology Transactions of the Institutions of Mining and MetallurgyRequires access

Reliability assessment of hydraulic shovel system using fault trees

Binay Kumar Samanta, Bijan Sarkar, Sumanta Mukherjee

Abstract

The reliability of a hydraulic shovel system has been assessed through the application of fault-tree methodology. Fault-tree analysis assists in the evaluation of the reliability of a system or alternative designs and identifies critical components for system success and potential causes of system failure. It uses deductive reasoning to identify system failure. A reliability block diagram and fault tree of the shovel system were developed. An algorithm for obtaining the minimum cut set as well as the minimum path set from the fault tree is presented and the reliability of the machine and its sub-systems with time is evaluated. The analysis indicates room for improvement in different aspects of the machine.

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Available abstract

Key concepts: Shovel, Fault tree analysis, Reliability block diagram, Reliability (semiconductor), Reliability engineering, Computer science, Hydraulic machinery, Set (abstract data type)