human powered vehicle - northern arizona university
TRANSCRIPT
![Page 1: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/1.jpg)
Human Powered Vehicle Team 9
Matt Gerlich, Alex Hawley, Phil l ip Kinsley,
Heather Kutz, Kevin Montoya, Erik Nelson
May 2, 2014
![Page 2: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/2.jpg)
Overview •Introduction
•Problem Formulation
•Proposed Design
•Prototype Fabrication
•Testing and Results
•Cost Analysis
•Conclusions
2 Heather Kutz
![Page 3: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/3.jpg)
Introduction •ASME Human Powered Vehicle Challenge
•Date: April 25-27
•Location: San Jose, California
•Five Events: Design, Innovation, Endurance, Men and Women sprint
•Clients
• Perry Wood
• ASME
3 Heather Kutz
![Page 4: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/4.jpg)
Problem Formulation •Need Statement:
• There is no current form of transportation that provides the benefits of bicycle commuting, while offering the practicality of automobiles.
•Goal Statement:
• “Design a human powered vehicle that can function as an alternative form of transportation.”
4 Heather Kutz
![Page 5: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/5.jpg)
Problem Formulation •Operating environment:
•Extended highway
•Cone based obstacle course
•Large parking lot
•Steel testing fixture
5 Heather Kutz
![Page 6: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/6.jpg)
6
Objective Measurement Bias Units
Vehicle can reach high speeds Top speed on a flat surface mph
Light weight Total weight of vehicle lbs
Highly maneuverable Turning radius ft
Contains cargo space Volume of storage space ft3
Support cargo weight Load storage space can hold lbs
Large field of view Total horizontal plane rider can see degrees
Protects rider from roll over Force roll bar can sustain lbs
Low Coefficient of Drag Drag force on vehicle lbs
Production run
manufacturability
Unit manufacturing cost for production run of
360 dollars
Fits diverse range of
operators Amount of seat adjustability ft
Heather Kutz
Table 1- Design Objectives
![Page 7: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/7.jpg)
7
ASME Competition Constraints
Turning radius ≤ 26.25 ft
Roll bar must withstand 600 lbf top with < 2 in deflection
Roll bar withstand 300 lbf side load with < 1.5 in deflection
Must have a seat belt
Field of view must equal or exceed 180°
Carry a 12 lbf parcel of 15 X 13 X 8 in
Stop at a speed of 15.5 mph in a distance ≤ 19.7 ft
Table 2- Competition Constraints
Kevin Montoya
![Page 8: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/8.jpg)
8
Costumer Constraints
Capable of exceeding 40 mph
Vehicle weight ≤ 80 lbf
Coefficient of drag times the area less than that of a traditional cyclist
Development budget of $6,500.00
Table 3- Costumer Constraints
Kevin Montoya
![Page 9: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/9.jpg)
Proposed Design
9 Kevin Montoya
![Page 10: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/10.jpg)
Proposed Design Fairing
10 Kevin Montoya
![Page 11: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/11.jpg)
Proposed Design Fairing
11 Kevin Montoya
![Page 12: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/12.jpg)
Proposed Design Fairing
•Coefficient of drag (Cd) = 0.09
• CdA = 90.2 in2
•333.5 Watts to reach 40 mph
•h = 37 in, w = 24 in, L = 114 in
•2 x 2 twill Carbon Fiber 3k with epoxy resin
12 Kevin Montoya
![Page 13: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/13.jpg)
Proposed Design Frame
13 Alex Hawley
![Page 14: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/14.jpg)
Proposed Design Frame
14 Alex Hawley
![Page 15: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/15.jpg)
Proposed Design Frame
15 Alex Hawley
![Page 16: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/16.jpg)
Proposed Design Frame
16
Load FEA Max
Deflection
Physical Max
Deflection
Maximum
Allowable
Deflection
Top 607 lbf
(2700 N)
0.602 in (1.53
cm)
0.378 in (0.96
cm)
2 in (5.1 cm)
Side 301 lbf
(1339 N)
0.593 in (1.51
cm)
1.382 in (3.51
cm)
1.5 in (3.8 cm)
Alex Hawley
Table 4- Frame Test Results
![Page 17: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/17.jpg)
Proposed Design Steering
17 Alex Hawley
![Page 18: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/18.jpg)
18 Alex Hawley
Caster Angle
13°
Proposed Design Steering
![Page 19: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/19.jpg)
19 Alex Hawley
Camber Angle
12° 12°
Proposed Design Steering
![Page 20: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/20.jpg)
20 Alex Hawley
Kingpin Angle
30° 30°
Proposed Design Steering
![Page 21: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/21.jpg)
Proposed Design Steering
21 Alex Hawley
![Page 22: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/22.jpg)
Proposed Design Drivetrain
22 Erik Nelson
![Page 23: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/23.jpg)
Proposed Design Drivetrain
Gear
Ratio
Speed at 90
RPM (MPH)
Speed at 110
RPM (MPH)
1.63 11.44 13.99
1.83 12.87 15.73
2.09 14.71 17.98
2.44 17.16 20.98
2.79 19.62 23.98
3.25 22.89 27.97
3.66 25.75 31.47
4.18 29.42 35.96
4.88 34.33 41.96
5.32 37.45 45.77
23 Erik Nelson
Table 5- Drivetrain Gear Ratios
![Page 24: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/24.jpg)
Design Details Ergonomics
24 Erik Nelson
![Page 25: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/25.jpg)
Proposed Design Vents
25 Erik Nelson
![Page 26: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/26.jpg)
Proposed Design Analysis
26 Erik Nelson
•Tipping Analysis
•Vent Geometry CFD
•Wheel Fairing CFD
•Steering Arm FEA
•Bell Crank FEA
•Outrigger FEA
•Frame Tubing Optimization
•Carbon Fiber 3-Point Bending
•Accelerometer Data Collection
![Page 27: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/27.jpg)
Prototype Fabrication
27 Matt Gerlich
![Page 28: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/28.jpg)
Prototype Fabrication
28 Matt Gerlich
![Page 29: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/29.jpg)
Prototype Fabrication
29 Matt Gerlich
![Page 30: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/30.jpg)
Prototype Fabrication
30 Matt Gerlich
![Page 31: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/31.jpg)
Prototype Fabrication
31 Matt Gerlich
![Page 32: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/32.jpg)
Prototype Fabrication
32 Matt Gerlich
![Page 33: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/33.jpg)
Testing and Results Performance
33
Physical Test Method Results
Rider Position Measure power output for
simulated race at different angles Angle of 122°
Turn Radius The turn radius will be measured for
a complete a 180° turn.
Turning radius of
8.4 feet
Braking Distance Measured stopping distance from
15.5 mph.
Complete stop in
12 feet.
Top Speed Test Measured with a 600 meter run up
and 200 meter speed trap.
44.8 mph was
reached
Phillip Kinsley
Table 6- Performance Testing
![Page 34: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/34.jpg)
Testing and Results Competition
•2nd place overall
•1st place in women’s sprint
•2nd place in design
•2nd place in innovation
•3rd place in endurance
34 Phillip Kinsley
![Page 35: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/35.jpg)
Cost Analysis
Subsection Projected Total
Frame $424.21
Fairing $2,926.34
Steering $802.36
Drivetrain $1,349.04
Ergonomics $278.73
Innovation $192.10
Vehicle Total $5,972.78
35
Table 7- Total Vehicle Costs
Phillip Kinsley
![Page 36: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/36.jpg)
Conclusions •Pulaski successfully met all the constraints and objectives set forth by ASME and team advisor through numerical and physical testing.
•The vehicle reached a top speed of 44.8 mph, achieved a turning radius of 8.4 feet, and completed a stop within 12 feet starting at 15.5 mph.
•The team utilized CNC machines, manual mills, 3D printer, and composite manufacturing processes.
•Pulaski was fabricated over four months and cost approximately $6,000.
•The team placed 2nd overall and received 5 total trophies at the ASME HPVC West in San Jose, CA.
36 Phillip Kinsley
![Page 37: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/37.jpg)
Special Thanks To!
•W.L. Gore
•Kenworth
•Absolute Bikes
•Nova Kinetics
•SuperBrightLEDS.com
•Copperstate
•Phoenix Heat Treat
•Power On Cycling
•Pactimo
37
•Perry Wood
•George Sedillo
•Dr. Tuchscherer
•Jim Corning
•Dr. Kosaraju
Sponsors
Phillip Kinsley
![Page 38: Human Powered Vehicle - Northern Arizona University](https://reader033.vdocuments.mx/reader033/viewer/2022051813/62824b0f7227b40c7d50959c/html5/thumbnails/38.jpg)
38
Questions?