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FMEA and FMECA - Coggle Diagram
FMEA and FMECA
FMEA (Failure Mode and Effects Analysis)
Definition
Systematic method to identify failures and effects
Purpose: Prevent problems in systems, products, or processes
5 Steps
Identify functions and potential failures
Determine effects of failures
Assign S, O, and D ratings
Calculate Risk Priority Number (RPN)
Define risk reduction actions
Risk Priority Number (RPN)
Formula: Severity x Occurrence x Detection
Purpose: Prioritize corrective actions
Risk Management Interventions
Prevention
Maintenance
Training
High-quality parts
Detection
Sensors and Alarms
Visual inspections
Corrective
Repair
Component replacement
FMECA (Failure Mode, Effects, and Criticality Analysis)
Key Components
Failure Mode (How it fails)
Effect of Failure (Impact)
Criticality (Severity + Occurrence)
Causes of Failure (Triggers)
Output
Criticality ranking
Detailed prioritization
Comparison
FMEA Use
General risk management
FMECA Use
High-reliability systems
Aerospace and Defense