Wikipedia:Sandbox
From DDL Wiki
(→FMEA) |
(→Fender Bridge FMEA) |
||
| Line 8: | Line 8: | ||
! 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 |
