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