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Case Studies
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Bretby Maintainability Index
The Bretby Maintainability Index (BMI) provides a comprehensive method for
analysing machine maintainability.
HSEC have recently updated and adapted the Bretby Maintainability Index to provide a comprehensive method for analysing machine maintainability.
It will successfully assist in optimising the maintenance procedures for any existing or new machinery with the benefit of saving maintenance time and cost.
The Bretby Maintainability Index can be applied effectively during all lifecycle
phases, for example:
- Concept Design,
- Detailed Design,
- Production / Operation
We have developed an extension module to the Bretby Maintainability Index, which
comprises a risk assessment that addresses the potential for unintentional human
errors that are primarily influenced by aspects of the design. The outcome identifies
the most likely errors and their prime causes so that areas requiring design
improvements are highlighted.
The Bretby Maintenance Index therefore aims to:
- Increase efficiency of maintenance resulting in reduced operational
overheads, and potentially increase reliability and availability
- Improve safety of maintenance staff,
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- Improve the human reliability of maintenance engineers, reduce maintenance error
The Bretby Maintainability Index can be used as an input to Cost Benefit Analysis, i.e. the cost of the design change can be weighed against predicted changes in the index score.
Trade-off Studies can be conducted between designs of whole systems or sub-systems during the purchasing phase of a system lifecycle.
Particular aspects of existing systems can be studied and quantified for Maintainability which can also be used as an input during the purchasing phase.
For further details please click here.
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