Dynamo critical design review
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Dynamo Critical Design Review. Team 2 Careful Harry Glenda Alvarenga J.J. Busse Emily Eggers Adam Kemp Gabrielle Massone Dalton Smith Corey Wilson. Mission Overview.

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Dynamo Critical Design Review

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Dynamo critical design review

DynamoCritical Design Review

Team 2 Careful Harry

Glenda Alvarenga

J.J. Busse

Emily Eggers

Adam Kemp

Gabrielle Massone

Dalton Smith

Corey Wilson


Mission overview

Mission Overview

  • To investigate small scale, high altitude kinetic power generation and assess its applications to present and future spacecraft

  • Hope to prove turbulence of flight can be harnessed as a viable energy source in an otherwise inhospitable environment

  • Hypothesis: greater turbulence and motion during flight will generate greater amounts of power.


Mission overview1

Mission Overview

  • Why?

    • Provide alternative power source for present and future spacecraft

    • Determine which variables (altitude, acceleration, air currents, etc…) produce most turbulence and power

    • Indirectly study physical stresses of a spacecraft during launch, flight, recovery, etc…

    • Possible influence on future spacecraft structures


Requirements flow down

Requirements Flow Down


Design overview

Design Overview


Dynamo structure

Dynamo Structure

Top-Down 2 Dimensional View


Dynamo structure1

Dynamo Structure

Corner Perspective 3 Dimensional View


Kinetic energy generator design overview

Kinetic Energy GeneratorDesign Overview

Changes: Elimination of parabolic motion of magnet, magnets now inside coil.


K e g continued

K.E.G. Continued

  • Inside the coil there shall be a rectangular compartment fitted to the size of 4 disk magnets stacked to form cylinder

  • Sideways motion will cause the magnets to roll within compartment along coil, causing magnetic flux & inducing an electromotive force (voltage) in coil.


K e g continued1

K.E.G. Continued

  • Estimated .4 volts or .2 amps will be generated with 100 mph wind (45 m/s) and 24 gauge copper wire for the material of the coil.

  • 100 mph winds are typically generated within the jet stream, between 7500 – 15000 m


Arduino system

Arduino System

  • Arduino Uno

    • 9V battery through Voltage regulator

    • Source code written in open source Arduino compiler

  • AttoPilot Current/Voltage Sensor

  • Triple Axis Accelerometer

  • Both Analog sensors – 10-bit ADC in chip allows for 1024 steps of accuracy in digital data values


Camera

Camera

  • Canon SD780 (A780)

  • Take pictures at 10 second intervals for the majority of the trip (about 80 minutes out of 90)

  • Programmed to take video clips at 3 separate times.

    • During launch

    • During the anticipated burst of the balloon

    • During anticipated landing

  • In bottom corner of the satellite with lens pointed outward

  • Wired to a switch on the outside of our BalloonSat for easy activation

  • 2GB SD card to store the images and video clips

  • Images and Video viewed on Corey’s on-site laptop after landing


Dynamo critical design review

HOBO

  • Record internal/external temperature and relative humidity.

  • Located in one of the corners of the BalloonSat.

  • Boxcar program on Corey’s Windows XP laptop.

    • HOBO programmed to start collecting data at launch

    • Upon retrieval, data will be directly uploaded to Corey’s laptop


Functional block diagram

Functional Block Diagram


Team organization

Team Organization


Budget

Budget

Total Weight: 659.9 g

Total Cost: $157.5


Dynamo critical design review

Date Schedule9/27/2011Turn in order form for mechanical components9/29/2011Team Meeting (4-6pm)10/3-7/2011Assemble satellite structure, Kinetic Energy Generator, and HW 05 heater10/3/2011                 Complete Design Document Revisions A/B and CDR10/4/2011  Design Document Revisions A/B due 7:00 am, CDR Presentation10/3-7/2011  Structure Testing (whip, kick, and drop tests)10/6/2011   Team Meeting (4-6pm)10/10-14/2011            Generator motion tests (vibration and sway tests)10/13/2011                 Team Meeting (4-6pm)10/20/2011                  Team Meeting (4-6pm)10/24/2011                  Complete testing; final satellite and generator completed10/25/2011                 Pre-launch inspection10/27/2011                 In-class mission simulation test; Team Meeting (4-6pm)11/1/2011                    Launch Readiness Review (LRR) presentation due at 7:00 am11/1/2011                    Design Document Revision C due at 7:00 am11/3/2011                    Team Meeting (4-6pm)11/4/2011                   Final Dynamo satellite weigh-in and turn-in11/5/2011                   Launch Day (4:45am-TBD)11/5-28/2011               Data analysis and compilation11/29/2011                  Final team presentation and report12/3/2011                   Integrated Technology and Learning Laboratory (ITLL) Design Expo12/6/2011                    Hardware Turn-in in class


Test plan

Test Plan

  • Structural and Comprehensive

    • Impact Test (10/6/2011)

    • Whip Test (10/7/2011)

    • Cold Test (by 10/23/2011)

  • Generator

    • Vibration Tests (10/13/2011)

    • Oscillation Tests (10/14/2011)

    • Electrical Circuitry (Throughout)

  • Technical Testing

    • Arduino System (by 10/14/2011)

      • Source Code (debugging, etc…)

      • Accelerometer tests

      • Voltage Sensor tests

      • Verify Data collection

    • Camera (by 10/20/2011)

    • HOBO (by 10/20/2011)


Expected results

Expected Results

  • Expect the generator to work

    • Calculated continuous .2 A, .4 V at 1G

  • Most power generated during periods of greatest turbulence

    • Launch, landing

    • Jet Stream

    • Burst

  • Correlation between altitude, acceleration, and power generation

  • Possible correlations between temperature and power generation

    • Temperature = by-product of altitude


Biggest worries

Biggest Worries

  • Generator doesn’t work

  • Generator works, but doesn’t produce enough voltage and current for the sensor to see measurable changes over time

  • Arduino programming/assembly glitches

  • General technical malfunctions in programming, circuitry/wiring, etc…


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