Oscillating fan
From DDL Wiki
(Difference between revisions)
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! Shaft | ! Shaft | ||
| Non-concentric Rotation|| Vibration and Noise ||5 ||Broken Bearing, Unbalanced Weight, Shaft Non-Uniformity ||2 ||Quality Control ||3 ||30 ||Vibration Testing ||Assembly ||- ||5 ||1 ||3 ||15 | | Non-concentric Rotation|| Vibration and Noise ||5 ||Broken Bearing, Unbalanced Weight, Shaft Non-Uniformity ||2 ||Quality Control ||3 ||30 ||Vibration Testing ||Assembly ||- ||5 ||1 ||3 ||15 | ||
+ | |- | ||
+ | ! Electronics | ||
+ | | Short Circuit ||Completely Inoperable || 8||Exposure to Water ||3|| Water Exposure Testing|| 2|| 48||Waterproof Housing of Electronics ||Housing ||- ||8||1||2||16 | ||
|- | |- |
Revision as of 22:24, 18 September 2007
Item and Function | Failure Mode | Effects of Failure | S | Causes of Failure | O | Design Controls | D | RPN | Recommended Action | Responsibility and Deadline | Actions Taken | S | O | D | RPN |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Motor/Shaft | Inhibited Rotation | Inefficient Operation | 5 | Debris (e.g. dust) in Fan | 4 | Run Under Extreme Dust and Debris Conditions | 2 | 40 | Filter, Accessibility for Cleaning, Better Protection of Rotating Parts | Motor Housing | - | 5 | 3 | 2 | 30 |
Swivel Mount | Nut Stripping, Plastic Fracture | Cannot Adjust Vertical Directoin Fan Cannot Effectively Circulate Air | 8 | Overtightening, Material Failure | 3 | Overtightened Screw, Force applied on Swivel Area | 1 | 24 | Use Torque Limited Fastening, Using Stronger Plastic | Swivel | - | 8 | 2 | 1 | 16 |
Oscillation Button | Dislocation of Button | Cannot Toggle Oscillation | 6 | Stripped Gear, Button Disengaged | 5 | Stronger Gears, Improved Connection | 2 | 60 | Fatigue Testing | Gears and Button | - | 6 | 3 | 2 | 36 |
Blade Cover | Inhibited Rotation, Blade Fracture | Complete Inoperable | 8 | Penetration of Cover | 4 | Penetrate Repeatedly | 1 | 32 | Warning Label, Redesign Cover | User | - | 8 | 3 | 1 | 24 |
Shaft | Non-concentric Rotation | Vibration and Noise | 5 | Broken Bearing, Unbalanced Weight, Shaft Non-Uniformity | 2 | Quality Control | 3 | 30 | Vibration Testing | Assembly | - | 5 | 1 | 3 | 15 |
Electronics | Short Circuit | Completely Inoperable | 8 | Exposure to Water | 3 | Water Exposure Testing | 2 | 48 | Waterproof Housing of Electronics | Housing | - | 8 | 1 | 2 | 16 |