Abstract
Human factors always affect maintenance performance, and in some cases, it’s critical to systems availability and reliability. Despite such importance, in so many cases, there’s no human reliability method applied to analyze maintenance tasks in order to understand better human factors influence in maintenance performance. There are several human analysis methodologies and regarding human factors, SLIM (Successes Likelihood Methods), SPAR-H (Standardized Plant Analysis Risk-Human Reliability Analysis Method) and Bayesian Net take into account such factors and may be a good approach to minimize human error. In order to propose a human reliability methodology to analyze maintenance tasks taking into account human factors, a case study about turbine star up tasks will be carried out. Therefore, different human reliability methods will be performed based on specialist opinion. Finally, the human error probability as well as drawbacks and advantages from different methods will be discussed to get a final conclusion.
Highlights
In 1958, Williams suggested to consider Human Reliability in system reliability analysis
There are several human analysis methodologies and regarding human factors, Success Likelihood Index Methodology (SLIM) (Successes Likelihood Methods), SPAR-H (Standardized Plant Analysis Risk-Human Reliability Analysis Method) and Bayesian Net take into account such factors and may be a good approach to minimize human error
No matter aspects regarded in Human Reliability Methods, nowadays they are applied by different industries in order to reduce accidents, and cost of human error in operation and maintenance activities
Summary
In 1958, Williams suggested to consider Human Reliability in system reliability analysis. Further in 1960, some reliability studies have shown that part of equipment failures had influence for human actions and in 1972, IEEE published a report about human reliability. In 1975, Swain and Guttmann in order to solve some human failure in Atomic Reactors operation proposed the first Human Reliability approach. The first on last twenty years (1970-1990) is known as First Human Reliability Methods Generation, which focuses on human error probabilities and operational human error. The Second phase, the ten years approximately (1990-2005) is known as second Human Reliability Methods Generation focus in Human performance Factor and cognitive processes. No matter aspects regarded in Human Reliability Methods, nowadays they are applied by different industries in order to reduce accidents, and cost of human error in operation and maintenance activities.
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