5 Short Videos: Failure Modes and Effects Analysis

Quiksigma Videos – Failure Modes and Effects Analysis Parts 1-5

15-16 minutes in total – across the 5 videos.

But first – what is FEMA (the Quality Tool – and not the government agency: Federal Emergency Management Agency)?

From Wikipedia

failure modes and effects analysis (FMEA) is an inductive failure analysis used in product developmentsystems engineeringreliability engineering andoperations management for analysis of failure modes within a system for classification by the severity and likelihood of the failures. A successful FMEA activity helps a team to identify potential failure modes based on past experience with similar products or processes or based on common failure mechanism logic, enabling the team to design those failures out of the system with the minimum of effort and resource expenditure, thereby reducing development time and costs. It serves as a form of design review to erase weakness out of the design or process. It is widely used in development and manufacturing industries in various phases of the product life cycle. Effects analysis refers to studying the consequences of those failures on different system levels.

Also – check out the key terms after the 5 videos (in case YOU need them).

Video – Part 1

Video – Part 2

Video – Part 3

Video – Part 4

Video – Part 5

More From Wikipedia

Failure
The loss of an intended function of a device under stated conditions.
Failure mode
The manner or way by which a failure is observed in terms of failure of the part function under investigation; it may generally describe the way the failure occurs. It shall at least clearly describe a (end) failure state of the item/function under consideration as result of the failure mechanism (cause of the failure mode). For example; a fractured axle or an open electrical contact can be a failure mode.
Failure Cause and/or Mechanism
Defects in requirements, design, process, quality control, handling or part application, which are the underlying cause or sequence of causes that initiate a process (mechanism) that leads to a failure mode over a certain time. A failure mode may have more causes. For example; fatigue or corrosion of a beam or contact is a failure mechanism and not a failure mode. The related failure mode (state) under analysis could be a “full fracture of structural beam” or for example “a open electrical contact”. The initial Cause might have been “Improper application of corrosion protection layer (paint)” and /or “(abnormal) vibration input from another failed system”.
Failure effect
Immediate consequences of a failure on operation, function or functionality, or status of some item
Indenture levels
An identifier for item complexity. Complexity increases as levels are closer to one.
Local effect
The failure effect as it applies to the item under analysis.
Next higher level effect
The failure effect as it applies at the next higher indenture level.
End effect
The failure effect at the highest indenture level or total system.
Severity
The consequences of a failure mode. Severity considers the worst potential consequence of a failure, determined by the degree of injury, property damage, system damage and/or time lost to repair the failure.

For more on FEMA – Failure Modes and Effects Analysis…

Here is a slide deck – here.

And search on FEMA – but spell it out otherwise you’ll get a lot of content about the Federal Emergency Management Agency.

# # #

Advertisements

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s