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Mulberry Grove High School. Preliminary Design Review Measurement of UVB Radiation Absorption by Cloth Material at Different Altitudes and Measurement of Vehicle Motor Tube/Case Temperatures During Launch. Mulberry Grove SLI Team. NASA SLI 2010. Mulberry Grove High School. Outline.

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Presentation Transcript
slide1

Mulberry Grove High School

Preliminary Design Review

Measurement of UVB Radiation Absorption by

Cloth Material at Different Altitudes and Measurement of

Vehicle Motor Tube/Case Temperatures

During Launch

Mulberry Grove SLI Team

NASA SLI 2010

slide2

Mulberry Grove High School

Outline

  • Team Members
  • Rocket Construction and Design
  • Payload
  • Recovery
  • Safety
  • Outreach
  • Budget and Fundraising

NASA SLI 2010

slide3

Mulberry Grove High School

Team Members

  • Student Team
  • Scott- Project Manager, Payload Specialist, and Rocket Construction.
  • Danielle- Safety Manager, Web Page, and Outreach Program.
  • Kayla N.- Web Page, Journalist, and Outreach Program.
  • Kayla J.- Web Page, Journalist, and Outreach Program.
  • Heather- Rocket Construction.
  • William- Payload and Vehicle.
  • Logan- Payload and Vehicle.
  • Mentors
  • Mr. John Paine
  • Mrs. Denyse Blankenship
  • Mr. Larry Terneus
  • Mr. Ryan Paine

NASA SLI 2010

slide4

Mulberry Grove High School

Rocket Dimensions, Material

Diameter: 4 inches

Length: 109.5 inches

Gross Liftoff

Weight: 18 lbs 11 oz

Material: G10 Fiberglass

Mad Dog Dual Deployment Kit

NASA SLI 2010

slide5

Mulberry Grove High School

  • Justification of Choice
    • Faster design time
    • More durable
    • Insured performance
    • Half scale model available at Performance Rocketry- Little Dog
    • Used the same kit in SLI 2009
    • Con: Heavier than other materials

NASA SLI 2010

plan for vehicle safety verification and testing

Mulberry Grove High School

Plan for Vehicle Safety, Verification, and Testing

The construction will be inspected by our level 3 as we build and assemble the vehicle.

Adequate sized vent holes will be drilled into all sections of the vehicle to prevent premature separation.

The vehicle will be flown in a test flight sometime in February.

NASA SLI 2010

slide7

Mulberry Grove High School

Stability Analysis

  • Center of Pressure (from nose) 87.6 inches
  • Center of Gravity (from nose) 76.0 inches
  • Stability Margin 2.9
  • Thrust-to-Weight Ratio 6.8 to 1
  • Rail Exit Velocity 69 ft/sec

NASA SLI 2010

slide8

Mulberry Grove High School

Motor Selection

  • Engine selected
    • Cesaroni Technology Inc.
    • K570
  • Diameter- 54 mm
  • Length- 19.21 in
  • Burn time- 3.9 sec
  • Total impulse - 2070.258 N-Sec

NASA SLI 2010

plan for motor safety verification and testing

Mulberry Grove High School

Plan for Motor Safety, Verification, and Testing

Motor will be inspected for damage from shipment before it is used.

NASA SLI 2010

slide10

Mulberry Grove High School

Payload Design

  • Two Experiments
    • Temperature of Motor Tube and Motor Casing
    • Measurement of Absorption of UVB Radiation of Cloth

NASA SLI 2010

temperature experiment purpose

Mulberry Grove High School

Temperature Experiment Purpose

To measure temperature along the motor tube and motor casing during launch. Temperature data will help determine which epoxy should be used.

NASA SLI 2010

slide12

Mulberry Grove High School

Temperature Experiment Equipment

  • 4 SA1- RTD heat sensors
  • Placement
  • Sensor- 3 reading/ 1 second
  • Data logger -1 reading/ 3 seconds

NASA SLI 2010

slide13

Mulberry Grove High School

Thermocouple Sensors

Three thermocouple sensors will be embedded into the epoxy glue joint along the fin-to-motor tube connection; one will be embedded as close to the JB Weld adhesive on the retainer

Temperature readings will be recorded during the flight to measure the heating on the motor tube epoxy.

NASA SLI 2010

non reversible 3 dot labels

Mulberry Grove High School

Non-reversible 3 dot labels

Labels will be placed between the rocket casing and motor tube.

Temperature sensitive material will turn the dots a different color when the temperature is reached.

Testing was started during a November flight with a K570 motor to find the temperature range of sensors that we need.

NASA SLI 2010

uvb experiment purpose

Mulberry Grove High School

UVB Experiment Purpose

To measure the absorption of UVB radiation by different cloth material at different altitudes.

NASA SLI 2010

slide16

Mulberry Grove High School

Measurement of Absorption of UVB Radiation of Cloth Equipment

Texas Instrument CBL2

Three UVB sensors

Cloth material

NASA SLI 2010

uva experiment

Mulberry Grove High School

UVA Experiment

Three sensors will be used; one control, the other two to take readings through the material.

Sensors will point straight upward at the end of the payload bay and will be exposed to the atmosphere when the drogue chute is deployed.

Data will be recorded and analyzed to measure the amount of UVB radiation that is absorbed by the cloth.

NASA SLI 2010

plan for payload safety verification and testing

Mulberry Grove High School

Plan for Payload Safety, Verification, and Testing

The sensors will be tested in the laboratory and outside to plot the readings of the two sensors compared to the control.

The experiments will be flown on a test flight in February to make sure the experiment will work.

Loggers will be tested to determine life of batteries and length of time it will record data.

Software will confirm data can be recovered from experiment.

NASA SLI 2010

slide19

Mulberry Grove High School

Recovery System Design

  • Dual Deployment
  • Dual system of altimeters with black powder charges
  • Electronic tracker

NASA SLI 2010

slide20

Mulberry Grove High School

Altimeters

  • Primary
    • Ozark Aerospace Arts II
    • Drogue setting: apogee
    • Main setting: 600 feet
  • Secondary
    • PerfectFlite MAWD
    • Drogue setting: apogee plus 1 second
    • Main setting: 500 feet

NASA SLI 2010

parachutes

Mulberry Grove High School

Parachutes

Drogue Chute

24 inch SkyAngle

Velocity of Descent: 64 ft/sec

Main Chute

60 inch SkyAngle

Velocity of Descent: 23 ft/sec

NASA SLI 2010

slide22

Mulberry Grove High School

Tracking

  • The receiver is a 10-channel unit manufactured by F & L Electronics with analog tuning to within 10 hertz. This makes it around 100 times more accurate than a digitally tuned receiver.
  • The antenna is foldable and lightweight.
  • The transmitter is small and will require little space in the payload compartment.
  • HAM radio license is not required.

NASA SLI 2010

recovery verification and testing

Mulberry Grove High School

RecoveryVerificationand Testing

Testing

Altimeter bell jar test

Black powder charge test on vehicle

Shear pin test

Electric matches testing

NASA SLI 2010

slide24

Mulberry Grove High School

Safety

  • We followed all MSDS safety regulations and standard shop regulations.
  • Proper safety equipment was used, including:
    • Safety glasses
    • Rubber gloves
    • Dust masks
    • Proper ventilation
    • Ear plugs

NASA SLI 2010

slide25

Mulberry Grove High School

Safety

  • Key materials used that may be dangerous:
    • Epoxy (5:1 by weight resin to hardener ratio)
    • Epoxy (1:1 by volume resin to hardener ratio)
    • Fiberglass
    • Rubbing Alcohol
    • Super glue
    • JB Weld

NASA SLI 2010

slide26

Mulberry Grove High School

Outreach Goals

  • Main points:
    • Reach out to younger students about rocketry
    • Teach them about the safety involved
    • Introduce them into a new hobby
    • Develop their interest in science and math

NASA SLI 2010

slide27

Mulberry Grove High School

Educational Outreach Program

  • 1st Grade Project (about 40 students)
    • Read book Astronaut Handbook
    • Draw
    • Make and shoot bottle rockets
  • 6th Grade Project (about 30 students)
    • Read the book The Rocket Boys
    • Discussion of book
    • Watch the movie October Sky
    • Compare and contrast the book and movie
  • 4th-6th Grad Project at Beckemeyer Elementary
    • Help with construction of rockets for about 100 students
    • Sponsor a rocket launch on the weekend to fly their rockets

NASA SLI 2010

budget and fund raisers

Mulberry Grove High School

Budget and Fund Raisers

The budget is manageable and realistic for this project.

Fundraisers include:

a play in March entitled “Spring Break”. (four performances)

Dinner followed by the “hanging of banners” celebration recognizing the last four years of TARC teams that made it to the finals and the 2009 and 2010 SLI teams.

NASA SLI 2010