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Plantation High School Team 1 CDR. Engaging students through STEM payload integration. Final launch vehicle dimensions. 14.2lbs / 6441.012g (without motor) 16.7lbs / 7597.5g (with motor) 94.5in. Discuss key design features. Nose Cone - carbon fiber. very light and strong
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Plantation High School Team 1 CDR Engaging students through STEM payload integration
Final launch vehicle dimensions • 14.2lbs / 6441.012g (without motor) • 16.7lbs / 7597.5g (with motor) • 94.5in.
Discuss key design features • Nose Cone - • carbon fiber. • very light and strong • Payload Bay - • Payload holder • (See payload design) • Transition - • 6 in. - 3 in. airframe. • 2 centering rings • Holding 3in coupler • Thrust Plate • Aluminum • Force distribution • Bolted and epoxied
Construction Middle Section/ Part 2 of 3 Bottom section/ Part 1 of 3
Construction • Laid out on mold • Epoxied • vacuum sealed Filled with clay to help hold smooth shape
Construction Thrust Plate used in previous years • Milled with Da Vinci 3-axis CNC router
Final motor choice • Aerotech K1275 • Average thrust of 1200N • Burn time 1.8 Sec
Backup motor choice • Aerotech K828 • Average thrust of 825N • Burn time 2.35Sec
Rocket flight stability in static margin diagram • CP: 72.1" from the nose cone • CG: 54.3" from the nose cone • Margin: 2.96
Thrust-to-weight ratio and rail exit velocity • Thrust-to-weight Ratio • 89.8 N/lbs. • Rail Exit Velocity • 99.93 ft/s.
Mass Statement and mass margin Mass Statement (Vehicle)
Mass Statement and mass margin Mass statement (Payload) Total - 6348g.
Parachute sizes, recovery harness type, size, and length, and descent rates • Drogue Chute - 24 In • Rip-stop nylon • 68.92 ft/sec • Main Chute - 86 In • Rip-stop nylon • 19.23 ft/sec • Recovery Harness • 2000 lb kevlar shock cord *Changed from tubular nylon
Kinetic energy at key phases of the mission, especially landing
Predicted drift from the launch pad with 5-, 10-, 15-, and 20-mph wind Predicted Drift (Based on wind speed) • 0 MPH - 0 Ft. • 5 MPH - 361.94 Ft. • 10 MPH - 717.78 Ft. • 15 MPH - 1101.92 Ft. • 20 MPH- 1471.56 Ft. Below Max of 2,500Ft.
Test plans and procedures • Parachutes- inspected and used in test launch • Shroud line connections • Recovery harness length • Ejection charges - tested outside • Separation • Black powder quantity check • Payload(sensor package) - tested in separate rocket • Properly recording data • February ~ • Vehicle's design, stability, and effectiveness • Test of full scale - March 9
Scale model flight test 1st launch: Apogee - 431 ft. • Drogue Deploy - apogee at 431 ft. • Main Deploy - 250 ft. -Engine: Estes F-50 single use 2nd launch: Apogee - 654 ft. • Drogue Deploy - Apogee at 654 ft. • Main Deploy - 250 ft. -Engine: Estes G-40 single use
Scale model flight Alt Bay Switch Raised Rail Button
Scale model flight test Carbon Fiber Nose cone and Transition No Main Deployment
Tests of the staged recovery system Main Drouge Alt bay
Final payload design overview -Elementary school • Collect data from egg vibrations to measure the conditions the egg under high G-forces • Egg held inside wooden prism • 5 Adjustable screws • 5 pressure sensors • Sensors connected to an Arduino Uno
Final payload design overview -Elementary school • Dimensions of elementary payload
Final payload design overview -Elementary school Each piece has size 8 hex nut in its center for screws. Curved sides for easy egg insertion and removal.
Final payload design overview Flexiforce pressure sensor places on cylinder • Linearity (Error) < ±3% • Repeatability < ±2.5% of full scale • Hysteresis < 4.5 % of full scale • Drift - 5% per logarithmic time scale • Response Time < 5 μsec
Final payload design overview -Middle school • Determine if the mixture will separate faster due to the high G forces. • Two airtight containers • 3 different liquids • Control • liquides layered with no disturbance • Test • liquids mixed with servo • Video recorded
Final payload design overview -Middle school Control Test Ball Bearing
Final payload design overview -Backup • Effectiveness of Shock absorbers • Reducing vibration during flight
Vibration Sensor Package Final payload design overview -Backup • Measures vibration. • Main chip: LM393, SW-18010P vibration switch. • Adjustable sensitivity • Aurduino Compatible Vibration Sensor
Final payload design overview -Sensor Package BMP085 Barometric Pressure Sensor ADXL335 Triple Axis Accelerometer RHT03 Temperature and Humidity Sensor Arduino Uno Microprocessor
Final payload design overview -Sensor Package
Final payload design overview Barometric Pressure Sensor Temp and Humidity Sensor -Sensor Package
Payload integration Payload holder • Three separated sections • 2 - 12in • 1 - 4in • Middle and elementary schools payload • Team Sensor package. • Held snug into nose cone by top bulkhead.
Interfaces (internal within the launch vehicle and external to the ground) Altimeter Bay Schematics
Interfaces (internal within the launch vehicle and external to the ground) • Will be using the Vehicle Garmin Astro 220 GPS Dog tracking collar • Range of 9 miles.
This Concludes our Presentation Any Questions? Please visit us a http://phsaerospace.weebly.com