Download - NASA USLI Rocket Competition
NASA USLI Rocket Competition
Kolton Jones, Daniel Jones, Timothy Bucklew, Owen GaulMariel Shumate, Keith Andrew
Physics and AstronomyWestern Kentucky University
National Collegiate Competition to launch and return safely a rocket with aNASA payload to a height of 1 mile.
1.Engage students of all levels in sciencea. Universityb. High Schoolc. Middle School
2.National Recruitment3.PR for NASA and STEM
May 2012- April 2013 NASA Student Launch Teams (University/College)
1. Alabama A&M University -- Normal, Ala.2. California Polytechnic Pomona -- Pomona, Calif.3. Century College -- White Bear Lake, Minn.4. Citrus College -- Glendora, Calif.5. Clark College -- Vancouver, Wash.6. Florida A&M University -- Tallahassee, Fla.7. Georgia Institute of Technology -- Atlanta, Ga.8. Harper College -- Palatine, Ill.9. Massachusetts Institute of Technology -- Cambridge, Mass.10. Mississippi State University -- Starkville, Miss.11. New Mexico State University -- Las Cruces, N.M.12. North Carolina State University -- Raleigh, N.C.13. Northwest Indian College -- Bellingham, Wash.14. Northwestern University -- Evanston, Ill.15. Pennsylvania State University -- University Park, Pa.16. Purdue University -- West Lafayette, Ind.17. Santa Fe College -- Gainesville, Fla.18. Tarleton State University -- Stephenville, Texas19. University of Alabama -- Tuscaloosa, Ala.20. University of Alabama in Huntsville -- Huntsville, Ala.21. University of California Davis -- Davis, Calif.22. University of Central Florida -- Orlando, Fla.23. University of Florida -- Gainesville, Fla.24. University of Illinois Urbana Champaign -- Champaign, Ill.25. University of Louisville -- Louisville, Ky.26. University of Minnesota -- Minneapolis, Minn.27. University of Nebraska -- Lincoln, Neb.28. University of New Hampshire -- Durham, N.H.29. University of North Carolina Charlotte -- Charlotte, N.C.30. University of North Dakota -- Grand Forks, N.D.31. University of Notre Dame -- South Bend, Ind.32. University of South Alabama -- Mobile, Ala.33. Vanderbilt University -- Nashville, Tenn.34. Virginia Tech -- Blacksburg, Va.35. Western Kentucky University -- Bowling Green, Ky.36. Windward Community College -- Kaneohe, Hawaii
Student Members of WKU USLI Rocket TeamVette City Rockets
Name Major Graduating Class1 Bucklew, Timothy BS: Mechanical
Engineering2014
2 Carvalho Pelossi, Bruno
Physics Brazilian Exchange Student
3 Covetts, James BS: Computer Science 2013
4 Dong, Samuel BS: Computer Science, BS: Physics
Gatton 2013
5 Dowell, Steven BS: Electrical Engineering
2014
6 Edens, Jordan BS: Mechanical Engineering
2015
7 Gaulle, Owen BS: Physics 2013
8 Ghanta, Akhil BS: Physics Gatton 2013
9 Heintzman, Eli BS: Physics 2015
10 Jones, Daniel BS: Physics 2013
11 Jones, Kolton BS: Physics 2014
12 Leszczewicz, Jason BS: Physics 2013
13 Masuda, Shane BS: Physics Gatton 2013
14 Shumate, Mariel BS: Mechanical Engineering
2014
15 Stansel, Jeffrey BS: Mechanical Engineering
2014
16 Wei, Daniel BS: Physics, BS: Mathematics
Gatton 2014
17 Wood, Duncan BS: Physics, BA: French
Gatton 2013
1. Design, Budget, Outreach and Testing2. Subscale Testing at WKU Rudolf Field: 6 launches, try for 1500 ft3. Half Scale Testing at Cemetery Field: 3 Launches, try for ½ mile: 2640 ft4. Charge Subscale Testing at E-Field: 1 Launch5. Full Scale Test at C-Field: 1 Launch – 1mile6. Huntsville Launch in April: 1 Launch – 1mile
11 Month ProjectCurrent: 43.5 lbs, 7.25 ft, 8.0” diameterNASA Check in every two monthsBudget: Max. Rocket and Payload $5kCost of full scale engine: $350Motor Choice: Aerotech L1420RStudents must do 100% of workLicensed Engine Mentor: Level 3 NAR D. Hanks
Team Name: Vette City RocketMailing Address: 1906 College Heights #11077 Name of Mentor: Darryl Hanks Level 3 NAR certification
NASA words of advice: please make a stable rocket.
WKU Vette City Rocket Plans
WKU Vette City Sponsors
Randolph, Hale & Meredith, Inc.
Design and Distribution of MicrochipsCorporate HeadquartersMicrochip Technology Inc.2355 West Chandler Blvd.Chandler, Arizona, USA 85224-6199(480) 792-7200
Computer Coding SolutionsGames to Web DesignNashville RoadBowling Green, KY
Industrial Suppliers: Medical, Mechanical, Display 319 State Street / P.O. Box 1217 Bowling Green, KY. 42101 Phone (270) 781-1462 Fax (270) 781-1524
Web Site: www.randolph-electronic.com E-Mail: [email protected]
Creating Robotic SolutionsInterface, applications, controllers
search • Robotic Designs • •Controller Boards • •Software and Interface • •Chassis and Accessories • •Application Studio • Customer Service Assistance: •
ACE Electrical EngineeringMicroprocessors, Boards, PCs
General MotorsCorvettes in BG
NASA KY Space GrantUK, EPSCoR
dm
dmrrr
Ad
Adrr cgcmcp
Dynamic Stability: CP is below CGSHM about CG due to torques acting at CP damped harmonic motion
Drift Field Parameters Consider a rocket in open parachute recovery mode at altitude h, with descent velocity v in the presence of a horizontal wind. The rocketwill drift a distance d from the location of parachute opening. To find the driftdistance we will:
1. Use Newton’s Laws of motion to relate the drag force to the weight and terminal speed of the rocket
2. Estimate the drag force in terms of the drag coefficient and parachute area3. Determine the descent velocity given the parachute area at terminal speed4. Relate this to the total time of descent5. Model various drift distances for a given horizontal wind speed6. Fit parameters and estimates from flight data 7. Develop a rapid calculation rule consistent with the detailed analysis
Scale model test launchat WKU Rudolph Field
Newton’s Second Law of MotionDescent Velocity During Recovery
WmgvACTF
amWFF
vACTF
dd
dj
j
dd
2)(:0aVelocity Terminal
:IINewton Eq. Dynamical2
)(:Force Drag Viscous
2
2
W=mg
F-drag
g=9.8m/s2
x
y
222
3
35.028.007.0
9.15.1
229.1
mmmAAA
Cmkg
chuterocket
d
air
Small safe recovery v~2.5 m/sLarger rocket, higher h, v~ 5 m/s
Typical Drag Forces:
12.54 N < F < 18.5 N ACmgvd
2
SkyAngle CERT 3 Drogue
Tested Load Capacity (lb) 60.0-129.8Surface Area (sq.ft) 129Tested Cd 2.92Suspension Line Length (inches) 120Net Weight (oz.) 64
Frictional Drag Force in a FluidHumidity and Altitude
jo
jj
vabsoluted
TT
sat
sat
d
vvdd
vapor
vapor
dry
dryhumid
dd
TTTdensity
PPPPaxP
humidityrealtivePaPkgKJ
kgKJR
density
RTMPMP
TRP
TRP
T
vACTF
1
3.2735.7
v
v
v
2d
3humid
2
)(:
pressure vapor saturation:10061078.0
::P
vaporfor water constant gas specific495.461R
Pa:or water vapof pressue partial:PK etemperatur:T
airdry for constant gas specific :058.287
mNPa :airdry of pressure partial:P
mkg:air humid of :
)(
2)(
RTPM
air of massmolar :0289644.0
:31447.8
:/0065.0:15.288
:325.101
1
molkgM
idealmolKJR
LapsemKLlevelseaKTlevelseakPaP
LhTTTLhPP
o
o
o
RLgM
oo
VgmgWmkg
30 22.1
Terminal Velocity and Parachute Area
drogueDmkg
shapeddomeCsheetflatC
smv
drvC
mgA
WmgAvCF
maWFF
d
d
d
dd
d
"60
22.1
8.15.175.0
/534
22
0
3
22
2
2
Scale Model Parachute for LaunchBrown Cemetery Lane Field
Younger's Creek 583
SkyAngle 60" Recon drogue chute
Tested load capacity (lb) 10.2 to 22.1Surface Area (sq.ft) 39.2Tested CD 1.89Suspension Line length (in) 60Net weight (oz.) 18.2
Descent Velocity and Time
mgAhC
vht
ACmgv
drvC
mgA
WmgAvCF
maWFF
d
d
d
dd
d
2
2
42
2
0
2
22
2
2
Balloon Borne SondeWind Speed Data
WKU Rudolph FieldDescent Data
ejection altitude ft 1000 1007 1437 1354 908 894descent rate mph 10 12 9 10 12 9descent rate fps 15 18 13.5 15 18 13.5descent time s 68.2 57.1 99.9 84.2 47.8 60.8
flight duration s 76.6 65.5 109.5 92.5 56.1 69.6
Horizontal Drift Distance – Recovery
mgAhCvvtD
mgAhC
vht
ACmgv
dwindwindhorizontaldrift
d
d
2
2
2
2
2
Rock-Sim Simulation of Flight
Solid Works Code for Designand modeling prior to Construction with avionics Digilent payload
Cesaroni L1395 Subscale Engine
WKU Rudolph Field Ag Farm: 1500 ft x 3500 ft
6 Launches with Estes C/D Engines Break 1500 ft altitude
Characteristic Flight Data from Six Launches at Rudolph Field
Defined Flight Active Zones WKU Rudolph Field Launch
alpha bar Beta Prime Gamma
First LaunchSecond Launch First Launch Second Launch First Launch
Second Launch
Peak altitude ft 1017 1038 1457 1389 934 956Top speed mph 205 204 272 258 169 163
Burn time s 2.8 2.8 2.8 2.8 2.8 2.8Peak a during boost g's 19.9 15.1 14.9 12.6 11.2 11.5
average a g's 3.3 3.3 4.4 4.2 2.7 2.7coast to apogee sec 5.6 5.6 6.8 5.5 5.5 6
apogee to ejection sec -0.1 -0.1 -0.5 -0.5 ? -1ejection altitude ft 1000 1007 1437 1354 908 894descent rate mph 10 12 9 10 12 9descent rate fps 15 18 13.5 15 18 13.5descent time s 68.2 57.1 99.9 84.2 47.8 60.8
flight duration s 76.6 65.5 109.5 92.5 56.1 69.6
1457 ft
Estes Rockets with C/D engines
First Launch Second Launch Third Launch Engine J520 SK J580 SS J 357 Blue Streakpeak altitude ft 2450 2515 2094top speed mph 317 229brun time secs 1.6 1.8peak accleration g 17.7 16.3average a g's 8.9 5.9cost to apogee secs 10.2 7apogee ejection time -2.3 -0.1ejection altitude 2418 1784descent rate mph 47 12descent rate fps 71 18descent time 33.2 94flight time 45 102.8
electronics main chutefailure failure
3 Subscale Launches: ½ Size: 2515 ft on 1-6-2013
Scale Model LaunchBrown Cemetery Lane Field
Younger's Creek 583
Post Flight Scale Model Recovery System
Smoothing CouplerFor Ejection
In conclusion:
1. Subscale electronic ejection flight success: March 9, 20132. Full Scale Test Flight: launch window March 16-31- not today3. Huntsville Flight: launch window April 19-21