Flashcards
SMCRSIM
Cards in this deck (15)
- 1What Does Eng. integrity includeReliability, availability, maintainability & safety
- 2What does Eng. Integrity lead toIt leads to good engineering design with the desired integrity
- 3The importance of understanding quality & reliability of a systemEngineers who are involved in Qual & Reliab are becoming more crucial to min large scale fails and avoid accidents.
Long term property knowledge & other devices help to design reliable products. - 4Bathtub curve. Name parts and describe with examplesBurn in - several years, design flaws and manu defects.
Usefull life - random failures
Wear out failure - ageing process of tech systems, weakened materials. - 5Systems can be influenced by:Availability
Complexity
Maint/M. System pract./M. support Sys
Failure Hist
Co-ord/co-op of maintenace staff n opp people - 6Describe Reliable below optimumLow intitial cost, but high post implementation cost.
- 7Describe optimum reliabilityBreak even balance of initial and post-implementation costs, which leads to minimum total cost
- 8Above opt. reliabilityHigh initial cost but low post-implementation cost
- 9Describe ‘survivability’In engineering, survivability is the quantified ability of a system, subsystem, equipment, process, or procedure to continue to function during and after a natural or man-made disturbance.
- 10DFR and how it differs from 6 sigmaDRF -> process specifically geared towards high long term reliability.
Identify and prevent design issues early in process
6S -> preventing non-conforming units - 11Decribe QFDQuality function deployment
-QFD tech to find all factors that may stop a design satisfying customers
- House of quality
- Systematic way to highlight design & process activities & controls 4 reliability. - 12Stress Strength AnalysisQual/quantatively evaluate reliability.
3 zones Intrinsically reliable, reliability 2 sensitive, reliability too low. calcs margain of strength/load. - 13HAZOPOStechnique to systematically and qualitatively determine potential hazards. Definition-Preperation-Examination-Documentation.
- 14FMECAFMEA + Criticality
- 15In DFR describe goal of validationResolve design and manufacturing issues in case they had been previously overlooked