MEEG 466 – Special Topics in Design Jim （MEEG 466 -专题设计吉姆）.pdfVIP

Failure Analysis Methods What, Why and How MEEG 466 – Special Topics in Design Jim Glancey Spring, 2006 Failure Analysis Methods •Every product or process has modes of failure. •An analysis of potential failures helps designers focus on and understand the impact of potential process or product risks and failures. •Several systematic methodologies have been develop to quantify the effects and impacts of failures. Failure Analysis Methods . . . Why perform failure analysis? • Product Development: • Prevent product malfunctions. • Insure product life. • Prevent safety hazards while using the product. • Process Development: –Insure product quality –Achieve process reliability –Prevent customer dissatisfaction –Prevent safety or environmental hazards Common Failure Analysis Techniques • Cause-Consequence Analysis • Hazard Operability Analysis • Checklist (HAZOP) • Human Reliability • Event Tree Analysis • Failure Modes Effects • Preliminary Hazard Analysis Analysis (FMEA) (PHA) • Failure Modes, Effects and • Relative Ranking Criticality Analysis (FMECA) • Safety Review • Fault Tree Analysis (FTA) • What-If / Checklist Analysis • What-If Analysis For the purpose of this class, two common but fundamentally different techniques will be presented in detail: 1. Failure Modes Effects Analysis (FMEA) 2. Fault Tree Analysis Part 1: Failure Modes Effect Analysis Failure Modes Effects Analysis (FMEA) • Tabulation of equipment/components and their a