Wikipedia:Sandbox
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(→FMEA) |
(→Fender Bridge FMEA) |
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! Part & Function !! Failure Mode !! Effect of failure !! Causes of failure !! Detection !! S !! O !! D !! RPN !! Action !! S !! O !! D | ! Part & Function !! Failure Mode !! Effect of failure !! Causes of failure !! Detection !! S !! O !! D !! RPN !! Action !! S !! O !! D | ||
|- valign="top" | |- valign="top" | ||
- | | rowspan="1" | ( | + | | rowspan="1" | (G1) Back Panel/ Pickguard Screws |
- | * | + | *Fastener for back panel |
- | | | + | | Stripped Head || |
- | * | + | *Lodged Screw |
- | + | | *Wrong Screwdriver *Over tightening of screw || Too much force applied to handle, Wood weakened by rotting || 3 || Test strength of wood before assembly || 3 || 72 || | |
- | | | + | |
*Use higher grade wood or metal | *Use higher grade wood or metal | ||
|| Manufacturer, Designer || 8 || 2 || 3 || 48 | || Manufacturer, Designer || 8 || 2 || 3 || 48 |
Revision as of 18:21, 23 September 2008
Failure Mode and Effects Analysis
Failure Mode and Effects Analysis (FMEA) is a crucial tool in determining if a particular component in a system will fail (in terms of the customer's requirements). By looking at each piece, we can rate the severity of a failure (S), the probability that it will occur (P), and the likelihood that the customer would detect the failure (D). The severity of failure is rated between 1-10, 1 being the effect is not noticed by the consumer, while 10 is hazardous. Probability of occurence is also rated from 1-10, 1 being extremely remote while 10 has an extremely high chance of occurring. Finally, detection is rated from 1-10 with 1 being almost certain to detect and 10 being no chance of detection whatsoever. With these three factors, we can multiply them together to achieve a total risk priority number (RPN) which can range from 1-1000 (1000 being the greatest risk). Below is a table outlining each part.
Fender Bridge FMEA
Part & Function | Failure Mode | Effect of failure | Causes of failure | Detection | S | O | D | RPN | Action | S | O | D | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(G1) Back Panel/ Pickguard Screws
| Stripped Head |
| *Wrong Screwdriver *Over tightening of screw | Too much force applied to handle, Wood weakened by rotting | 3 | Test strength of wood before assembly | 3 | 72 |
| Manufacturer, Designer | 8 | 2 | 3 | 48 |
(G2) Back Panel | cell 2,1 | cell 2,2 | ||||||||||||
(G3) Strings | ||||||||||||||
(G4) Springs | ||||||||||||||
(G5) Whammy Bar | ||||||||||||||
(G6) Bridge Mounting Screws | ||||||||||||||
(G7) Bridge Assembly | ||||||||||||||
(G8) Spring Claw | ||||||||||||||
(G9) Spring Claw Screws | ||||||||||||||
(G10) Saddle Plate | ||||||||||||||
(G11) Saddle Spring} | ||||||||||||||
(G12) Saddle Screw | ||||||||||||||
(G13) Neck | ||||||||||||||
(G14) Neck Mounting Plate | ||||||||||||||
(G15) Bridge Block | ||||||||||||||
(G16) Bridge Block Mounting Screws | ||||||||||||||
(G17) Guitar Body | ||||||||||||||
(G18) Bridge Plate |