Reliability Maintenance Engineering Day 2 session 3 Measuring Maintainability
Three day live course focused on reliability engineering for maintenance programs. Introductory material and discussion ranging from basic tools and techniques for data analysis to considerations when building or improving a program.
23. Decision focused
• If task not related to a
decision or value
– Why?
– What can be learned?
– Process improvement
• Each task should have
value attached
24. KISS Principle
• Example of simple
solutions
• Review fixes and
patches for ways to
simply entire process
• It takes work to be
simple
25. Always ask why
• Why is this being done
• Why is this important
• Why now?
• Why does this work?
26. Even the paperwork
• Forms, checklists, and
incentives
• Story of repair center
and repair action form
• Story of prototype
process
29. Design for Reliability
• Set of tools to improve
reliability
• Systematic,
streamlined, concurrent
engineering program
• Balance of function,
cost, time to market,
and reliability
30. DFR Example
• Derating story
• Best Practices
– Environmental Testing
– Stress/strength
– Process control
31. Design for Maintainability
A design strategy, involving
both the designer and end
user, with the following
objective:
• Identify and prioritize
maintenance requirements.
• Increase product availability
and decrease maintenance
time.
• Increase customer
satisfaction.
• Decrease logistics burden
and Life Cycle Costs.
The four stages[edit source | editbeta]Unconscious incompetence The individual does not understand or know how to do something and does not necessarily recognize the deficit. They may deny the usefulness of the skill. The individual must recognise their own incompetence, and the value of the new skill, before moving on to the next stage.[2] The length of time an individual spends in this stage depends on the strength of the stimulus to learn.[3] Conscious incompetence Though the individual does not understand or know how to do something, he or she does recognize the deficit, as well as the value of a new skill in addressing the deficit. The making of mistakes can be integral to the learning process at this stage.[4] Conscious competence The individual understands or knows how to do something. However, demonstrating the skill or knowledge requires concentration. It may be broken down into steps, and there is heavy conscious involvement in executing the new skill.[3] Unconscious competence The individual has had so much practice with a skill that it has become "second nature" and can be performed easily. As a result, the skill can be performed while executing another task. The individual may be able to teach it to others, depending upon how and when it was learned.
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Balance between investment and value
Maintaining simplicity
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Balance between investment and value
Increasing maintainability though design
Specifically, DFR describes the entire set of tools that support product and process design (typically from early in the concept stage all the way through to product obsolescence) to ensure that customer expectations for reliability are fully met throughout the life of the product with low overall life-cycle costs. In other words, DFR is a systematic, streamlined, concurrent engineering program in which reliability engineering is weaved into the total development cycle.
http://www.theriac.org/DeskReference/viewDocument.php?id=222Note:"Maintenance Costs % of Total Costs" is the annual maintenance cost as a percentage of total annual plant costs."Maintenance Costs % of Plant Replacement Value" is the maintenance cost as a percentage of plant asset replacement value at a given time.Reprinted with permission from the Plant Maintenance Resource Center. http://plant-maintenance.com/benchmarking.shtml