Question

Maintenance management

QUESTION 1 The reliability centered maintenance (RCM) provides the criteria for choosing the best proactive tasks that are technically feasible. Discuss the four main task selection processes. se s 1.1 12x4 8] Considering the performance standards of an asset, discuss the difference between the built in capacity. Give a practical example, 1.2 18] different from the ones given in your text book.

Answer 1

In this solution some basic concepts of RCM are used. For more information, refer to any standard textbook or drop a comment below. Please give a Thumbs Up, if solution is helpful.

Solution :

Question 1.1 :

Risk Threshold Identification (RTI)

While not 100 percent bulletproof, the idea here is to have special brainstorming sessions with your subject matter experts (SMEs) who must list the functions of a selected system and then list their experiences on where specific components could manifest a problem that may cause one or more serious consequences to the plant. To date, there have been some previously unknown “finds” that needed immediate corrective actions.

Defect Elimination (DE)

The methodology and rationale for including DE in addition to root cause analysis (RCA) is to eliminate known defects caused by aging, wear and tear, careless or poorly executed work habits, changed operating conditions requiring more robust components, or inadequate replacement parts that don’t meet current stress levels present in an asset. DE analysis meetings typically can be completed in a day because they deal with known defects.

Root Cause Analysis (RCA)

An in-depth investigation of why a specific failure occurred is more the result of an actual failure that had very large consequences (e.g., shutdowns, safety, regulatory violations, etc.) and less about a clear understanding of the “why” question not being satisfactorily ascertained. In a way, RCA may be considered a special form of DE coupled with the large consequence situation.

Question 1.2 :

• “Capacity” refers to what a product can do in a standardized, controlled environment.
• “Performance” refers to what the product actually does in its daily environment.

Turns out that the two concepts are highly correlated, but not exactly. Thus, products with high capacities are likely to have higher capability, and to perform better, compared to those with less capacities. But, for two products of equal capacity, their performance may be different.

The key difference then has to do with context. There are factors in the context that impacts how product with otherwise equal capacities actually perform. As such, the construct of capacity has little context. Capability refers to context specific situations, while “performance” is highly contextual.

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