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Team 7 - Project 99.07
Team Members:
J. M. Tate, J. Acheson, P. Sullivan, and A. Abumohor
Advisor: Dr. J. Glancey Sponsor: Dr. Limin Kung
Presenter Topic
J. Acheson Intro, Customers to Metrics
J. Michael. Tate Concept Generation
P. Sullivan Concept Selection
A. Abumohor Scheduling, Budget, and Conclusion
Mission: The purpose of our team is to design and build a means to quickly and reproducibly load a test silo without requiring extensive manpower.
Approach: We will use the Total Quality Design Process, through the SpreadSheet Design Process on Microsoft Excel.
• Academic
– Dr. Limin Kung
– Dr. Martin Stokes
– Dr. Joseph Harrison
• Industrial
– Mr. Chris Rhoden
– Ms. Carol Myers
• Agricultural
– Mr. Richard Morris
1) Reproduce Desired Results
2) Not Physically Demanding
3) Fast Operation
4) Simple Operation for User
5) Low Cost
6) Easy to Clean
7) Easy to Repair
8) Easily Transportable
9) Variable Silo Size
10) Easy to Store
The apparatus should be able to:
1) Pass though a doorway
2) Be moved by 2 people
3) Pack faster than Kung’s methods
4) Give a proper sink distance
5) Be built for under $500
• Stoke’s Pneumatic Loader
• Trash Compactors
• Shotshell Loaders
• Pharmaceutical Capsule Filling Machines
• Dr. Kung’s Packing Methods
Main Competitor:
Stoke’s Pneumatic Loader
Functions:
• Compacting Devices
• Material Transport
• Container Transport
• Pressure and Load Sensors
• User-Interface Controllers
• High-Velocity Blowing Compactor
• Distributed Weight Packer
• Rolling Compactor
• Hydraulic Power Press
• Extrusion Screw
Best Practice: Pneumatic Piston
• Bagging Lawnmower
• Vacuum Cleaner
• Two-Stage Silage Blower
• Multiple Ram Silage Mover
• Screw Feeder
Best Practice: Screw Feeder
• Case Conveyor
• Cola Bottling Line
• Cigarette Packing Apparatus
Best Practice: Conveyor Belt
• Pressure Transducer
• Load Cell
• Piezoelectric Pressure Sensors
Best Practice:
Piezoelectric Pressure Sensors
• Computer Keyboard
• Foot Pedal
• Video Game Controller
• Push Button
Best Practice: Foot Pedal
Metric Want
Number if Users Simple Operation
Pressure per Layer
Change in Pressure Reproduce Desired Results Per Layer
Operating Force Not Demanding
Total Cost Low Cost
Metric Want
Total Time to Fill Fast Operation
Number of Users Simple Operation
Storage Volume Easy to Store or Transport
Number of Silo Sizes Variable Silo Sizes
Weight Easy to Transport
Straight Extruder Tapered Extruder
Extrusion Family
Gravity Fed Piston Hand Fed Piston
Horizontal Piston Family
Piston with Vibrating Chute
Crank Slider
Vertical Piston Family
Screw Fed Piston
Centrifuge Weight Press
“Other” Design Family
Blower
Experiments
Types:
• Effect of Lips and Sudden Changes in Diameter• Effect of Plunger Size on Packing• Effect of Piston Orientation
– Vertical and Horizontal• Silage Behavior on Chutes and in Ramps
Low Rated Concepts
Extruder Family:• Cost metric too high• Lack of experimental data
Horizontal Piston Family:• Change in Pressure Per Layer metric too high• Time to Fill metric is too high• Jamming problems inherent in the design
Low Rated Concepts
“Other” Family:• Pressure target is not met• Dimensions outside of constraints• Weight outside of constraints
Vertical Piston Family:
High Scoring Metrics:• Pressure per layer• Change in Pressure per Layer• Time to Fill
Screw Fed Piston
Evaluation:
User Actions is lowTime to Fill is lowCost of Screw Feeder is too high
Piston with Vibrating Chute
Evaluation:
Clogging problems increase time to fillCost metric is too high
Crank Slider
Evaluation:
Time to Fill is good.Low Cost
User Actions is high.
Motor: 1/3 Hp. AC
6 rpm
Dyad Diameter: 11 in.
Frame of 1 in. steel square tubing
Carriage on Linear Bearings
Linear Cam with Follower
ID Task Name
1 want
8 Bench marking
13 metrics
20 Concepts
25 Presentation
29 Concept Generation and Selection
39 After Presentation III
6 13 20 27 4 11 18 25 1 8 15 22 29 6 13 20 27 3 10 17 24 31 7 14 21 28 7 14 21 28 4 11 18 25 2ptember October November December January February March April May
ID Task Name
1 want
8 Bench marking
13 metrics
20 Concepts
25 Presentation
29 Concept Generation and Selection
30 talked about presentation
31 info about concept parts
32 study screw and price it
33 call Dr. kung for air compresor
34 new concept generation
35 benchmarking internet + library
36 drawings
37 experiments
38 Presentation
39 Prepare
40 Practice
41 Present
42 After Presentation III
43 winter session
44 Meetings
45 call to order parts
46 start building the machine
machine shop
work 2 hours daily
2 meetings weekly
13 20 27 4 11 18 25 1 8 15 22 29 6 13 20 27 3 10 17 24 31 7 14 21 28 7 14 21 28 4 11 18 25 2ber October November December January February March April May
PART PRICE $ FRAME 129
MOTOR 120
PISTON 15
LINKAGE 25
SPRING 8
MOUNTING MECHANISM 73
BEARINGS 48
BASE 33
TOTAL 451