fmea(參考版)
2025-02-23 14:24本頁面
【正文】 FMEA Failure Mode and Effects Analysis Adapted from presentation by Dr. Stamper Outline ? Failure Mode and Effects Analysis – What is it? – Motivation – FMEA Methods – Example ? FMEA inclass exercise What is an FMEA? Description: ? A procedure that examines each item in a system, considers how that item can fail and then determines how that failure will affect (or cascade through) the system Acronyms ? FMEA: Failure Modes and Effects Analysis ? FMECA: Failure Modes and Effects and Criticality Analysis Motivation for Conducting a FMEA ? Improves design by discovering unanticipated failures ? Highlights the impact of the failures ? Potentially helpful during legal actions ? Provides a method to characterize product safety ? Often required (. FDA and DOD procurement) Method to Conduct an FMEA (taken from ASM Handbook Vol. 11) – Identify all ponents or systems at given level of the design hierarchy. – List the function of each identified ponent or system. – Identify failure modes for each ponent/system. Typically there will be several ways in which a ponent can fail. – Determine the effect (both locally and globally) on the system. Method to Conduct an FMEA (taken from ASM Handbook Vol. 11) – Classify the failure by its effects on the system operation. – Determine the failure’s probability of occurrence.
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