Power scrubber
From DDL Wiki
(→Failure Mode and Effect Analysis) |
(→Failure Mode and Effect Analysis) |
||
Line 98: | Line 98: | ||
|- | |- | ||
|Battery Housing | |Battery Housing | ||
- | + | |Battery housing comes loose | |
- | |Battery housing | + | |
- | comes loose | + | |
|No Power Source | |No Power Source | ||
|4 | |4 | ||
Line 113: | Line 111: | ||
| Button sticks | | Button sticks | ||
| Can't turn on or can't turn off | | Can't turn on or can't turn off | ||
- | | | + | | 4 |
- | | | + | | Alignment of button |
- | | | + | | 2 |
- | | | + | | Scrubber would not turn on |
- | | | + | | 1 |
- | | | + | | 8 |
- | | | + | | Make it a flip switch |
|} | |} | ||
Revision as of 14:44, 20 September 2012
Contents |
Exectuve Summary
Major Product Stakeholder Analysis
We identified four major categories of stakeholders for our product. They are manufacturers, shipping & transportation companies, retailers, and consumers.
Stakeholder Objectives
- Manufacturers
Low cost raw materials Simple manufacturing process required for materials chosen -- easy for mass production Energy efficient manufacturing process Recyclable materials Easy assembly Low cost packaging
- Shipping & transportation companies
Firmly packaged Light weight packaging Space efficient mass packaging
- Retailers
Appearance Cost Marketability (consumer needs) Durability
Stakeholder Needs and Wants | ||
---|---|---|
Stakeholder | Needs | Wants |
Consumer |
|
|
Retailer |
| |
Manufacturer |
|
|
Shipping & Transportation |
|
|
Product User Study
Mechanical Function
Parts List
Design For Manufacturing and Assembly
DFM
The product use standarize components for many of the components such as the screws, motor, and velcro. All the conducting metal pieces have similar dimations, which requires fewer tools and setups during the manufacturing process. Also, most parts are made of the same materisl, ABS, with injection molding. The product take advantages of the rubber rings as a seal for water proofing as well as a locking mechanism for holding parts together.
DFA
Failure Mode and Effect Analysis
Item and Function | Failure Mode | Effects of Failure | S | Causes of Failure | O | Design Controls | D | RPN | Recommended Actions |
---|---|---|---|---|---|---|---|---|---|
Battery Housing | Battery housing comes loose | No Power Source | 4 | Not closed properly | 4 | Scrubber would not turn on | 2 | 32 | A clicking mechanism |
Button: ON/OFF | Button sticks | Can't turn on or can't turn off | 4 | Alignment of button | 2 | Scrubber would not turn on | 1 | 8 | Make it a flip switch |
Design For Environment
Production | Use | ||||
---|---|---|---|---|---|
Item purchased | Power Scrubber Manufacturing | Battery | Sponge | Soap | Water |
a) Picture | |||||
b) Economic Sector Name and # | Small Electric appliance #335210 | Primary battery manufacturing #335912 | Broom, brush, and mop manufacturing #339994 | Soap and cleaning compound manufacturing #325610 | Water, sewage and other systems #221300 |
c) Reference Unit | 1 item | 4 batteries | 1 piece | 16 oz/bottle | 19.5 gallon/day |
The Team
Team Leader: Xin (Pam) Hu
DFMA Leader: Ken-Soh (Robert) Mai
FMEA Leader: Ben Antoine
DFE Leader: Kelle Patterson
User Study Leader: Shao-Chuan (Ted) Fang