14016775
Description
Flashcards by Rhys Powell, updated more than 1 year ago
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Created by Rhys Powell
about 6 years ago
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| Question | Answer |
| What Does Eng. integrity include | Reliability, availability, maintainability & safety |
| What does Eng. Integrity lead to | It leads to good engineering design with the desired integrity |
| The importance of understanding quality & reliability of a system | Engineers 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. |
| Bathtub curve. Name parts and describe with examples | Burn in - several years, design flaws and manu defects. Usefull life - random failures Wear out failure - ageing process of tech systems, weakened materials. |
| Systems 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 |
| Describe Reliable below optimum | Low intitial cost, but high post implementation cost. |
| Describe optimum reliability | Break even balance of initial and post-implementation costs, which leads to minimum total cost |
| Above opt. reliability | High initial cost but low post-implementation cost |
| Describe ‘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. |
| DFR and how it differs from 6 sigma | DRF -> process specifically geared towards high long term reliability. Identify and prevent design issues early in process 6S -> preventing non-conforming units |
| Decribe QFD | Quality 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. |
| Stress Strength Analysis | Qual/quantatively evaluate reliability. 3 zones Intrinsically reliable, reliability 2 sensitive, reliability too low. calcs margain of strength/load. |
| HAZOPOS | technique to systematically and qualitatively determine potential hazards. Definition-Preperation-Examination-Documentation. |
| FMECA | FMEA + Criticality |
| In DFR describe goal of validation | Resolve design and manufacturing issues in case they had been previously overlooked |
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