1. project goal: develop a hybrid powered rocket compliant with air force safety directives and...
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Project Goal:
Develop a hybrid powered rocket compliant with Air Force safetydirectives and launch from Cape Canaveral Air Force Station
(CCAFS)to obtain trajectory data for NASA's UCAT program.
Project Objectives:
Collaborate with the 45th Space Wing to determine the optimalmethod of launching a hybrid rocket from CCAFS Build rocket following method provided and launch Construct ground support equipment necessary to facilitate a
launch Retrieve trajectory data from the rocket for use in NASA’s
UCAT program
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Fill System Slider Rail forOperational Test Fires
o Made from excess aluminum C-Channel and 80/20 extruded launch rail.
o Teflon spray allows for smoother movement and operations of Fill System
o Held by C-Clamps for stability and alignment with thrust stand
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The GallowsFill lines and fill assembly tether
o Designed to catch fill assembly after ejection from combustion chamber
o Routes N20 and GOX fill hoses from tanks to fill assembly
o Ground stakes and rope provide extra stability
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Original rail removedduring Panther 1
Replace with hanging rail systemfor Panther 2
Basic stress: τ = F/A Moments: M = F*d We must calculate for a worst case
scenario event of a full thrust maximum moment hang fire
Possible ANSYS analysis for 45th Space Wing Certification
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Mout – Exit mach numberP0 – Combustion chamber pressureA* - Throat Area - Regression rate of fuel a, n – Constants inherent to fuel
given by literatureGox – Oxidizer mass fluxAport – Area “seen” by combustionAburn – Surface area of burning surface - Volumetric flow rate of fuel Solve above two equations to determineappropriate geometry of fuel grain,Aport , Agrain, and length
r
r
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http://www.aeroconsystems.com/misc/mandrils/98mm_Star.gif
Aport = 1.1 in2
Aburn = 125.5 in2
From regression eqns:Length of grain = 14.76 in
Shorter length to test mandril and mixing procedures
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Fire goes through here
Sunbeam mixer
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Pro/E assembly
Assembly held by assistant Mr. Atkinson
CombustionChamber
Nitrous Tankand Vent Tube
Thrust Standadapter
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Motor mounted on Thrust Stand
Cool!
•Two units each with 2 accelerometers and 1 gyroscope•Housed in water tight container•Data collected for UCAT program developed by FIT and NASA
Figure 1: Three axis gyroscope
Figure 2: Two axis accelerometer
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Figure 3: Radio Modem from Digi
•Data transmitted using 2 radio modems•Sensors save and transmit data using serial ports•Data recorded on onboard memory and sent via radio frequency to the ground
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