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Reliability, Availability and Maintainability Analysis (RAM)

Reliability, availability and maintainability (RAM) analysis is risk approach to determine the target availability (and un-availability) of the facility of plant. Many factors contributing to low  availability is identified and determined and, reliability improvement is then proposed accordingly. RAM analysis is performed by using fault tree analysis (FTA) or reliability block diagram (RBD). Highest availability of the facility can be determined by purchasing the highest possible reliable equipment and/or by arranging  serial and paralel (redundance) equipment to produce the best combination of equipment arrangement availability and selections. Some of RAM intention is to boost production and to minimize the unplanned shutdown.

 

 

Benefit of RAM

a. It decreases equipment and component failure and increase MTTF/MTBF. 

b. It identifies the most critical equipment. 

c. It increases maintainability (reduce MTTR). 

d. It increases availability and decrease unplanned shutdown. 

e. It decreases maintenance cost. 

f. It optimizes spare parts /stocking management. 

g. It improves safety of people and asset.