Badger BikeInstructor: Jim

TinjumLab 320

Agenda

Problem Statement Design Requirements Preliminary Designs Final Design

Bike Frame Box Drive Train Miscellaneous

Final Price Maintenance Safety

Requirements Conclusion Questions

Problem Statement

Build a device to transport at least 300 pounds of materials and at least a 200 pound driver around campus and up steep hills

Requirements

Haul a load of at least 500 lbs.

Trailer with sides of at least 8’’ tall

Tailgate

Solid bottom Move at a brisk

walk Travel up hills Budget of

$3,000.00

Conceptual Design #1

Frame obtained from a salvage yard

Body looks like golf cart

Purchase steering w/ racket & pinion style

Extended feature on bed

Conceptual Design #2

Used ATV Trailer kit from

Menards ATV & trailer

welded together Extended cab w/

an extra axle

Conceptual Design #3

Front frame of a mountain bike

Pedaling & use of engine

3 side folding down trailer

Emergency & standard brakes for safety

CriteriaMax Point

Value Golf Cart ATV BikeFinal

Design

Customer Appeal 20 6 9 13 16

Safety 15 8 7 10 12

Environmentally Friendly 12 7 6 10 12

Appearance 12 5 7 7 10

Uniqueness 12 3 6 8 10

Time Factor 10 2 4 6 4

Ability to Obtain Parts 7 2 3 5 7

Feasibility 7 1 4 5 5

Cost 5 2 1 3 81

Total 100 36 47 67 83

Tailgate

Pivot Wheels

Initial Frame

Box & Box Frame

Drive Train

Bike

Bike

EZ-3SX Recumbent Bicycle Discount at Budget Bicycle Steel frame easier for welding

Frame

Steel over Aluminum Purpose to hold motor, battery, drive

train, & attach bike Dimensions are 2x4x1

Box & Box Frame Box

Built out of aluminum sheets

Dimensions 5x3.16x1.16

Riveted to Frame Sealed with silicon

caulking Box Frame

Built out of Aluminum Dimensions 5x3.16

Tailgate

Tailgate allows for driver to load/unload greenhouse equipment

Dimensions 3.16x1.16 feet Most important is fabrication of hinges

Drive Train

Engine used to get up hills Chain & Gear set up

Clutch Bearing and Sprocket

Drive Train

hpwattss

m

s

mkgPower

speedmgPower

speedForcetime

ntdisplacemeForce

time

workPower

06.11.793)4384.2)(6(sin8.95.317

))((sin

2

Horsepower

Drive Train

RPM

rpmrpm

engineRPMratiogear

wheelRPM

rpms

s

rev

s

in

in

revwheel

RPM

innceCircumfere

radiusnceCircumfere

2.1467167.91

7.91min

6052.11

96

8.62

1

8.62102

2

Final Price List

EZ-3Sx Recumbent Tricycle $450.00

Motor $350.00

Aluminum Sheeting $300.00

Pillow Bearings $250.00

Steel Tubing $200.00

Miscellaneous $550.00

Grand Total $2,100.00

Maintenance

Regular bike upkeep Bearings Brake Pads Chains Tire Pressure

Engine Batteries

Safety

Operation Tire pressure Oil gears Able to turn motor

on/off at will Riding

Use proper signals Don’t take sharp

corners

Loading Must not exceed X

lbs Unloading

Open tailgate slowly

Storing Store indoors

Conclusion

Designed to transport a 200 pound driver and --- pounds of equipment

Large enough trailer to fit necessary equipment

Tailgate for easy access to equipment Motor: Moves at 8 ft/sec (Brisk Walk)