Optimal Repair Analysis Level
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In the design and maintenance of modern equipment and systems, adequate attention must be given to Optimum Repair Level Analysis (ORLA). ORLA is a unique, easy to use decision support tool designed to assist management through an interactive process, to analyze maintenance concepts, alternatives and procedures.
The ORLA module identifies each item within the system and recommends whether it should be supported under a discard-at-failure or repair maintenance policy. ORLA recommends on most optimal repair and stock site locations and transportation means between the system's facilities in the maintenance map (e.g. land transportation, air transportation etc.). Optimum maintenance repair policy is achieved over a system's total life cycle based on required system availability and cost constrains.
Key Benefits of the ORLA
- System maintenance and logistic costs reduction
- Optimization of system/equipment repair cost during its life cycle
- Increased productivity
- Trade-offs of various maintenance repair alternatives
- Increased availability and reliability of a system
- Optimal inventory locations
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Benefits in the design phase:
- Provides a viewpoint in deciding whether components should be discarded-at-failure (throw away) or repaired
- Assists engineers to evaluate different maintenance polices and their costs
- Enables a sensitivity analysis and quantifies the maintenance criteria and program characteristics.
Benefits in the maintenance phase:
- Provides tools to review, refine and revise existing maintenance policy to assure the most economical alternative.
- Supports economical decision for external maintenance repair sub-contracting
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Defines which blocks should be repaired and which ones should be discarded and where spare stocks should be located
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Achieves minimal maintenance cost for a given availability or maximizes the availability for a given maintenance budget
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Recommends optimal maintenance level for each restored block from the possible ones, defined by user, for example: Organizational, Intermediate, Depot, Contractor, etc.
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Defines the location from where the spares should be purchased for each replaceable block, from all available user defined spare sources.
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Recommends optimal sites for exchange (central) & forward (local) spare stocks for each replaceable block.
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Determines where it should purchase spares for each replaceable block from all available spare sources defined by user
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Allows defining maintenance type for each block (Removable, Replaceable, Reparable and Discard)
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During optimization ORLA satisfies Availability requirements for all blocks that have been defined earlier by the user
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From all solutions satisfying Availability requirements ORLA selects the solution with minimal maintenance cost, non-system & down time damage. Maintenance cost includes investments in maintenance facilities, support equipment & initial spares, and also all annual repair, storage, purchase & transportation costs
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ORLA outputs detailed optimal solution for the given availability requirements & also a range of other optimal solutions for higher required availability. So user can see the optimal cost growth depending on required availability increasing
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Recommends optimal transport type (air, railway, auto, sea, etc.) for purchased spares (from source site to stock) and repaired blocks (from removal site or stock to repair site and back)
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Simplifies the maintenance concept description of multi sites into one simple site
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