Ski rack dfma
From DDL Wiki
(Difference between revisions)
m |
|||
Line 3: | Line 3: | ||
[[Ski rack]] | [[Ski rack]] | ||
- | {| | + | {|style="text-align:center; width:80%;" |
|- | |- | ||
- | ! Assembly | + | ! scope="col" | Assembly |
- | ! Function | + | ! scope="col" | Function |
- | ! Potential Mode of Failure | + | ! scope="col" | Potential Mode of Failure |
- | ! Potential Effect of Failure | + | ! scope="col" | Potential Effect of Failure |
- | ! Sev | + | ! scope="col" | Sev |
- | ! Potential Cause of Failure | + | ! scope="col" | Potential Cause of Failure |
- | ! Occurance | + | ! scope="col" | Occurance |
- | ! Detection Controls | + | ! scope="col" | Detection Controls |
- | ! Detection | + | ! scope="col" | Detection |
- | ! RPN | + | ! scope="col" | RPN |
|- | |- | ||
| Bracket | | Bracket | ||
Line 326: | Line 326: | ||
| Latch | | Latch | ||
| Open and Close the Ski Rack on Request | | Open and Close the Ski Rack on Request | ||
- | | | + | | User Forgets to Close |
- | | | + | | Loss of skis, potentially fatal accidents |
+ | | 9 | ||
+ | | Distracted User | ||
+ | | 4 | ||
+ | | Warning System | ||
+ | | 6 | ||
+ | | 216 | ||
+ | |- | ||
+ | | Latch | ||
+ | | Open and Close the Ski Rack on Request | ||
+ | | User Forgets to Close | ||
+ | | Loss of skis, potentially fatal accidents | ||
+ | | 9 | ||
+ | | Cannot See Open Rack | ||
+ | | 2 | ||
+ | | Visual Aide | ||
+ | | 7 | ||
+ | | 126 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Does not hold the skis with sufficient force | ||
+ | | Loss of skis, potentially fatal accidents | ||
+ | | 9 | ||
+ | | Different height of skis | ||
+ | | 5 | ||
+ | | Individually sliced rubber | ||
+ | | 1 | ||
+ | | 45 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Does not hold the skis with sufficient force | ||
+ | | Loss of skis, potentially fatal accidents | ||
+ | | 9 | ||
+ | | Bent Crossbars | ||
+ | | 2 | ||
+ | | Material Choice | ||
+ | | 1 | ||
+ | | 18 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Does not hold the skis with sufficient force | ||
+ | | Loss of skis, potentially fatal accidents | ||
+ | | 9 | ||
+ | | Unevenly worn rubber | ||
+ | | 3 | ||
+ | | Individually sliced rubber | ||
+ | | 1 | ||
+ | | 27 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Holds the skis too tightly | ||
+ | | Damage to skis | ||
+ | | 6 | ||
+ | | Too thick of a ski | ||
+ | | 4 | ||
+ | | More space between crossbars, taller rubber | ||
+ | | 1 | ||
+ | | 24 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Holds the skis too tightly | ||
+ | | Damage to skis | ||
+ | | 6 | ||
+ | | Bent Crossbars | ||
+ | | 2 | ||
+ | | Material Choice | ||
+ | | 1 | ||
+ | | 12 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Holds the skis too tightly | ||
+ | | Damage to skis | ||
+ | | 6 | ||
+ | | Rubber too hard | ||
+ | | 3 | ||
+ | | Material Choice | ||
+ | | 3 | ||
+ | | 54 | ||
+ | |- | ||
+ | | Crossbars | ||
+ | | Holds the Skis Securely in Place | ||
+ | | Does not apply uniform pressure | ||
+ | | Loss of skis, potentially fatal accidents | ||
| 9 | | 9 | ||
| | | |
Revision as of 14:17, 4 February 2011
Ski Rack DFMA
Assembly | Function | Potential Mode of Failure | Potential Effect of Failure | Sev | Potential Cause of Failure | Occurance | Detection Controls | Detection | RPN |
---|---|---|---|---|---|---|---|---|---|
Bracket | Hold the rack onto the crossbars | Plastic Cracks | Rack Unstable | 5 | Cold | 2 | Material Choice | 1 | 10 |
Bracket | Hold the rack onto the crossbars | Plastic Cracks | Rack Unstable | 5 | Poor Manufacturing | 4 | N/A | 6 | 120 |
Bracket | Hold the rack onto the crossbars | Plastic Cracks | Rack Unstable | 5 | Vehicle Crash | 4 | N/A | 10 | 200 |
Bracket | Hold the rack onto the crossbars | Plastic Cracks | Rack Unstable | 5 | Overtorque | 4 | Allen Key Size | 7 | 140 |
Bracket | Hold the rack onto the crossbars | Bolt Shears | Rack Unstable | 5 | Vehicle Crash | 4 | N/A | 10 | 200 |
Bracket | Hold the rack onto the crossbars | Bolt Shears | Rack Unstable | 5 | Rust | 7 | Use Stainless Steel | 5 | 175 |
Bracket | Hold the rack onto the crossbars | Bolt Shears | Rack Unstable | 5 | User Bolt - Not Factory | 3 | Specific Shape and Thread | 10 | 150 |
Bracket | Hold the rack onto the crossbars | Bolt Shears | Rack Unstable | 5 | Overtorque | 4 | Allen Key Size | 7 | 140 |
Bracket | Hold the rack onto the crossbars | Bolt Shears | Rack Unstable | 5 | Undertorque | 3 | Allen Key Size | 7 | 105 |
Bracket | Hold the rack onto the crossbars | Mounting Grooves Wear | Rack Unstable | 5 | Vibrations | 3 | Material Choice | 5 | 75 |
Latch | Open and Close the Ski Rack on Request | Will Not Open | Cannot go skiing | 7 | Frozen | 5 | Material Choice | 8 | 280 |
Latch | Open and Close the Ski Rack on Request | Will Not Open | Cannot go skiing | 7 | Deformation | 6 | Material Choice | 8 | 280 |
Latch | Open and Close the Ski Rack on Request | Will Not Open | Cannot go skiing | 7 | Lost / Broken Key | 4 | Extra Key | 1 | 28 |
Latch | Open and Close the Ski Rack on Request | Will Not Open | Cannot go skiing | 7 | Broken Rivet | 2 | Material Thickness | 6 | 84 |
Latch | Open and Close the Ski Rack on Request | Will Not Close | Cannot go skiing | 7 | Broken Latch | 5 | Material Choice | 2 | 70 |
Latch | Open and Close the Ski Rack on Request | Will Not Close | Cannot go skiing | 7 | Deformation | 6 | Material Choice | 4 | 168 |
Latch | Open and Close the Ski Rack on Request | Will Not Close | Cannot go skiing | 7 | Lock Frozen Locked | 4 | Seal Lock to prevent moisture from entering | 4 | 112 |
Latch | Open and Close the Ski Rack on Request | Will Not Close | Cannot go skiing | 7 | Broken / Worn Spring | 3 | Spring Choice | 5 | 105 |
Latch | Open and Close the Ski Rack on Request | Will Not Close | Cannot go skiing | 7 | Broken Rivet | 2 | Material Choice | 6 | 84 |
Latch | Open and Close the Ski Rack on Request | Opens on its own | Loss of Skis, Potentially Fatal Accidents | 9 | Deformation | 6 | Material Choice | 4 | 216 |
Latch | Open and Close the Ski Rack on Request | Opens on its own | Loss of Skis, Potentially Fatal Accidents | 9 | Weakened Plastic | 7 | Material Choice | 6 | 378 |
Latch | Open and Close the Ski Rack on Request | Opens on its own | Loss of Skis, Potentially Fatal Accidents | 9 | Driving Forces Break Latch | 3 | Minimize Forces, Material Choice | 10 | 270 |
Latch | Open and Close the Ski Rack on Request | Opens on its own | Loss of Skis, Potentially Fatal Accidents | 9 | Ratchet Tooth Failure | 4 | Avoid Use of Ratchet Teeth | 8 | 288 |
Latch | Open and Close the Ski Rack on Request | Opens on its own | Loss of Skis, Potentially Fatal Accidents | 9 | Broken / Worn Spring | 3 | Spring Choice | 5 | 135 |
Latch | Open and Close the Ski Rack on Request | Opens on its own | Loss of Skis, Potentially Fatal Accidents | 9 | Broken Rivet | 2 | Material Thickness | 6 | 108 |
Latch | Open and Close the Ski Rack on Request | Not Fully Closed | Chance of Opening leading to loss of skis, potentially fatal accidents | 9 | Ratchet Tooth Barely Engaged | 6 | Color Notification | 2 | 108 |
Latch | Open and Close the Ski Rack on Request | Not Fully Closed | Chance of Opening leading to loss of skis, potentially fatal accidents | 9 | Debris in the Way | 8 | Color Notification | 2 | 144 |
Latch | Open and Close the Ski Rack on Request | Not Fully Closed | Chance of Opening leading to loss of skis, potentially fatal accidents | 9 | Too much in the rack | 6 | Color Notification | 2 | 144 |
Latch | Open and Close the Ski Rack on Request | User Forgets to Close | Loss of skis, potentially fatal accidents | 9 | Distracted User | 4 | Warning System | 6 | 216 |
Latch | Open and Close the Ski Rack on Request | User Forgets to Close | Loss of skis, potentially fatal accidents | 9 | Cannot See Open Rack | 2 | Visual Aide | 7 | 126 |
Crossbars | Holds the Skis Securely in Place | Does not hold the skis with sufficient force | Loss of skis, potentially fatal accidents | 9 | Different height of skis | 5 | Individually sliced rubber | 1 | 45 |
Crossbars | Holds the Skis Securely in Place | Does not hold the skis with sufficient force | Loss of skis, potentially fatal accidents | 9 | Bent Crossbars | 2 | Material Choice | 1 | 18 |
Crossbars | Holds the Skis Securely in Place | Does not hold the skis with sufficient force | Loss of skis, potentially fatal accidents | 9 | Unevenly worn rubber | 3 | Individually sliced rubber | 1 | 27 |
Crossbars | Holds the Skis Securely in Place | Holds the skis too tightly | Damage to skis | 6 | Too thick of a ski | 4 | More space between crossbars, taller rubber | 1 | 24 |
Crossbars | Holds the Skis Securely in Place | Holds the skis too tightly | Damage to skis | 6 | Bent Crossbars | 2 | Material Choice | 1 | 12 |
Crossbars | Holds the Skis Securely in Place | Holds the skis too tightly | Damage to skis | 6 | Rubber too hard | 3 | Material Choice | 3 | 54 |
Crossbars | Holds the Skis Securely in Place | Does not apply uniform pressure | Loss of skis, potentially fatal accidents | 9 |