Team Lightning RodCritical Design Review

Fall 2010 Rev A

08-23-10

Trevor LukeChris BennettMatt Holmes

Sushia Rahimizadeh

Alex Shelanski

Matthew Dickinson Jesse Ellison

10/7/2010

Mission Overview Objective

To determine if future spacecraft will be able to utilize energy generated by vibrational and rotational motion as additional energy sources

To determine if more energy can be generated from vibrational motion or rotational motion

What we hope to prove and discover A significant amount of energy can be produced from the motion of the

satellite A satellite can generate enough energy to power some systems

Hypothesis Rotational motion will produce more energy than vibrational motion

Why we are doing this mission To develop an alternative method of generating power for spacecraft

Requirements Flow Down

Goal:The goal of team Lightning Rod is to send a balloon satellite equipped with an electromagnetic generator to an altitude of thirty kilometers to determine if vibrational and rotational energy can be harnessed as a supplemental and renewable energy source for future spacecraft.

Level 0 Objective 1: Fly a satellite to 30 km.

Requirements Objective 1 Requirements Level 1 Reference

O1.R1 Satellite Zeus will be attached to a helium weather balloon that will carry it up to 30 km.

O1

O1.R2 Satellite Zeus will be attached to the balloon on a piece of rope that will run directly through the center of the satellite.

O1

O1.R3 Satellite Zeus will be kept stable on the rope by using washers and clips.

O1

Requirements Objective 2 Requirements Level 1 Reference

O2.R1 Satellite Zeus will be kept above -10 degrees by using an electric heater that will be created by Team Lightning Rod and will be powered using 9V batteries.

O2

O2.R2 Satellite Zeus will be insulated with ½ inch foam insulation to keep the Satellite above -10 degrees Celsius

O2

O2.R3 Satellite Zeus will also have no holes to contain the heat in the satellite.

O2

Level 0 Objective 2: Keep the internal temperature of the satellite above -10 degrees Celsius.

Level 0 Objective 3: Keep the overall weight of the satellite below 850 g.

Requirements Objective 3 Requirements Level 1 ReferenceO3.R1 Satellite Zeus will be under 850 grams by keeping a very

meticulous budget that keeps track of the weight of every piece of equipment that will be on the satellite.

O3

Requirements Objective 4 Requirements Level 1 Reference

O4.R1 Satellite Zeus will fly the Cannon camera to capture photos of near space.

O4

O4.R2 The camera on Satellite Zeus will be programmed ahead of time so that it will work independently of all other electronics during the flight.

O4

O4.R3 The HOBO datalogger will be a standalone item in the satellite that will measure the internal temperature, external temperature, and relative pressure.

O4

O4.R4 The HOBO datalogger information will then be used to determine the satellites position at certain times during the ascent and descent of the satellite.

O4

Level 0 Objective 4: Fly a Cannon Camera and the HOBO datalogger on the satellite.

Requirements Objective 5 Requirements Level 1 ReferenceO5.R1 The electromagnetic generator will have magnets that vibrate as

the satellite vibrates, thus producing an electric current.O5

O5.R2 The created energy will then be held in a capacitor. O5O5.R3 The amount of energy in the capacitor will be constantly

measured and recorded by the data storage device on the microcontroller.

O5

Level 0 Objective 5: Capture and store kinetic energy using the vibrating electromagnetic generator.

Level 0 Objective 6: Capture and store kinetic energy using the rotational electromagnetic generator.

Requirements Objective 6 Requirements Level 1 ReferenceO6.R1 The electromagnetic generator will have magnets that vibrate as

the satellite vibrates, thus producing an electric current.O6

O6.R2 The created energy will then be held in a capacitor. O6O6.R3 The amount of energy in the capacitor will be constantly

measured and recorded by the data storage device on the microcontroller.

O6

Level 0 Objective 7: Compare the results of the rotational generator and the vibrational generator to see which one is most effective

Requirements Objective 7 Requirements Level 1 Reference

O7.R1 After Satellite Zeus is retrieved, the data from the two generators will be uploaded onto a computer for analysis.

O7

O7.R2 We will compare the data results as a function of time and also in reference to the information retrieved by the HOBO datalogger so that we can understand the best results at the relative moments of the flight.

O7

Design We will design and construct two electromagnetic

generators One rotational generator One vibrational generator

We will test them to make sure that they are both efficient and reliable

Energy output data during the flight will be processed and stored on the micro-controller

We will analyze the data when Satellite Zeus returns to determine which generator was more efficient

Our mission will achieve success when we demonstrate the ability to generate electricity from the g-forces that act upon Zeus

The Generators

Rotational Generator Vibrational Generator

2D Model

3D Model

Functional Block Diagram

Part Type Qty Units Source $Part $Ship Cost Mass                     36 ga. Wire - 11/4 lb powerwerx.com          9V Batteries Energizer 12per/pack Wal-Mart     $ - 169gAA Batteries Energizer 8- Wal-Mart     $ - 87gAluminum Tape - 3m Class $ -   $ -    Anti-Abrasion washers - 2- Class $ -   $ -    Camera Canon 1- Class $ -   $ -    Capacitor TAP156K010SCS 20- mouser.com $ 0.77 $ 2.32 $ 17.72 2.5gData storage 24AA1025-I/P 1- mouser.com $ 3.69 $ 2.32 $ 6.01 0.1gDevelopment Board DEV-00022 1  SparkFun $ 30.95 $ 6.90 $ 37.85 12gFoam Core - 3Sht Class $ -   $ -    Heater - 1- Built outside class $ -   $ -    Hobo - 1- Class $ -   $ -    Hot Glue - 4- Class $ -   $ -    LDO Regulator AMEILI7CCBT 1- mouser.com $ 1.14 $ 2.32 $ 3.46    Machine Screw Model # 72508  256x20mm Home Depot $ 0.68   $ 17.00    

Magnets Neodymium Magnets 16.75x.75x .25 in Magnet4less.com $ 1.17 $13.91 $ 32.63 277g

Microcontroller PIC16F887-I/P 1- SparkFun $ 2.64 $ 2.32 $ 4.96 0.2gNylon washers Model # 86948.0 2bags Home Depot     $ -    Paper Clips - 4- Class $ -   $ -    Plexi glass Model # GE-33 1  Home Depot     $ -    Relays V23079A1001B301 4- mouser.com $ 2.28 $ 2.32 $ 11.44 12gRubber Bumpers   4  Ace Hardware ? ? ? ?  

Spring Steel - 1(.5x .015) inx10ft McMaster.com $ 12.83 $ 4.67 $ 17.50    

Switches CWSC11JFAFS 2- mouser.com $ 3.33 $ 2.32 $ 8.98 4g

BudgetBudget $ 300.00  Cost of Supplies $ 157.55  Hardware Mass 563.44gEstimated Mass 700g

Parts that have been ordered:20 CapacitorsData StorageDevelopment BoardLDO Regulator16 Neodymium magnetsMicrocontroller4 RelaysSpring Steel 2 Switches

*All parts have been delivered already.

Parts that need to be purchased:BatteriesWireNylon WashersPlexi-glassRubber Bumpers25 machine screws

**Parts are to be purchased before this weekend

ScheduleComplete proposal and presentation and submit online—Due 9/16 by 7:00 amFill out order form and order hardware—9/23 at 11:30 Team meeting-10/4 at 3:00Cut out generator structures-10/4Wrap copper coils-10/4Write presentation-Due 10/5 by 7:00Team meeting-10/5 at 3:00 pmTest structure—10/5 to 10/8Assemble magnets and spring steel for vibrational generator-10/5Complete construction of vibrational and rotational generators—10/8Team meeting-10/10 at 2:00 pmTest and adjust generator design to optimize voltage-10/10Assemble and wire satellite—10/10 to 10/15Complete the wiring of satellite—10/16Team meeting-10/17 at 2:00 pmProgram satellite hardware—10/17 to 10/22

Final Construction Completed—10/23Team meeting-10/24 at 2:00pmFinal Testing—10/24 to 10/29Project Finished—10/30Buffer Week—10/31 to 11/5Finish Critical Design Review-11/2Launch—11/6Write final presentation-11/30Finish Analysis and Final Report- 12/4Team video due-12/4

Test PlanTest Explanation Date of TestRotational Generator Test

We will test the generator in a simulated rotational environment that it will experiencing during flight to determine that it works correctly. We will make the necessary changes to make it optimally efficient.

10/11/2010

Vibrational Generator Test

We will test the generator on the Oscilloscope in the ITLL to determine that it is working correctly and make the necessary changes to make it optimally efficient.

10/11/2010

Drop Test We will drop the satellite (weighted with rocks) from various heights to determine weak points in the structure.

10/13/2010

Whip Test We will attach an accurately weighted prototype to a string (same type as the launch string) and swing it to determine if the structure will survive the whipping after burst and to see if our method of attachment to the string is effective.

10/13/2010

Cold Test We will place the Satellite in a Cooler with dry ice for several hours to determine if it will be able to withstand the extreme temperatures.

10/16/2010

Camera Test We will test that the camera functions at room temperature to determine if it is programmed and wired correctly before the launch.

10/16/2010

Expected Results

The generators will produce a measurable amount of power

More power from rotational generator than from the vibrational generator

Higher energy output during turbulence Highest energy output during burst Results independent of temperature and

pressure

Team Org ChartTrevor Luke

Team Leader —Scheduling, Communications, Documentation

Chris BennettStructure Co-Head —Presentation Collaborator

Matt HolmesBudget Head —Programming Assistant, Documentation

Alex ShelanskiTesting Head —Film

Jesse EllisonElectronics Head —Drafting/Design

Matthew DickinsonStructure Co-Head —Testing Assistant

Sushians RahimizadehProgramming Head —Mission Design

Biggest Worries Time constraint Vibration generator failure Glitches in the programming Component failure Generator breaking on impact