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Magnetic Accelerator Cannon Magnetic Accelerator Cannon By Omar Aboueljoud Alberto Bird Wesley Lima Eric Shields Group 10 University of Central Florida Senior Design Project Documentation EEL 4915 Summer 2014 Magnetic Accelerator Cannon ii | P a g e Table of Contents 1.0 Executive Summary ....................................................................................... 1 2.0 Project Description ......................................................................................... 3 2.1 Project Motivation and Goals ...................................................................... 3 2.2 Objectives ................................................................................................... 3 2.3 Project Requirements and Specifications.................................................... 5 3.0 Research ........................................................................................................ 6 3.1 Existing Similar Projects and Products........................................................ 6 3.1.1 The Methodology for Selecting an Electromagnetic Gun System ......... 6 3.1.2 Operational Requirements and Issues for Coilgun Electromagnetic Launchers ...................................................................................................... 8 3.1.3 Analysis of Inductive Coilgun Performance based on Field Coupling Circuit Method.............................................................................................. 10 3.1.4 Inductance Calculations ...................................................................... 10 3.1.5 Coilguns.info ....................................................................................... 13 3.1.6 UCF Senior Design (Spring „12) Nail Coil Gun ................................... 14 3.1.7 Coil Gun with Targeting System ......................................................... 16 3.2 Relevant Technologies.............................................................................. 26 3.2.1 AC to DC Power Supply ..................................................................... 26 3.2.2 Capacitor Bank ................................................................................... 27 3.3 Strategic Components............................................................................... 29 3.3.1 Energy Storage Components .............................................................. 30 3.3.2 Switches ............................................................................................. 35 3.3.3 Coils .................................................................................................... 37 3.3.4 Sensors............................................................................................... 38 3.3.5 Power Supply ...................................................................................... 39 3.3.6 Rangefinder ........................................................................................ 41 3.3.7 Processor ............................................................................................ 42 3.4 Possible Architectures and Related Diagrams .......................................... 43 3.5 Simulation ................................................................................................. 47 4.0 Hardware and Software Design Details ........................................................ 49 4.1 Initial Design Architectures and Related Diagrams ................................... 49 4.1.1 Mission Profile .................................................................................... 52 4.2 Power Supply ............................................................................................ 53 Group 10 Senior Design Project Documentation P a g e | iii 4.3 Energy Storage ......................................................................................... 56 4.4 Switching ................................................................................................... 69 4.4.1 Sensors ............................................................................................... 69 4.4.2 Switches .............................................................................................. 71 4.5 User Interface and Control ........................................................................ 72 4.5.1 User Interface ..................................................................................... 72 4.5.2 Switch Control ..................................................................................... 78 4.5.3 Rangefinder ........................................................................................ 79 4.5.4 Camera ............................................................................................... 80 4.5.5 Microcontroller .................................................................................... 80 4.5.6 Printed Circuit Board ........................................................................... 83 4.6 Barrel ......................................................................................................... 84 4.6.1 Projectile ............................................................................................. 85 4.6.2 Coils .................................................................................................... 87 4.7 Packaging ................................................................................................. 95 4.7.1 Projectile loader .................................................................................. 95 4.7.2 Stand ................................................................................................... 98 5.0 Design Summary of Hardware and Software .............................................. 101 5.1 Power Supply .......................................................................................... 101 5.2 Energy Storage ....................................................................................... 103 5.3 Control and UI ......................................................................................... 106 5.4 Barrel ....................................................................................................... 108 5.5 Packaging ............................................................................................... 110 6.0 Project Prototype Construction and Coding ................................................ 113 6.1 Software .................................................................................................. 113 6.1.1 UI Coding Plan .................................................................................. 113 6.1.2 Launch Sequence Coding Plan ......................................................... 116 6.2 Hardware ................................................................................................. 117 6.2.1 Capacitor Bank ................................................................................. 117 6.2.2 Power Supply .................................................................................... 117 6.2.4 Coil Winding ...................................................................................... 120 6.2.5 Coil Mounting .................................................................................... 121 6.2.6 Sensor Mounting ............................................................................... 121 Magnetic Accelerator Cannon iv | P a g e 6.2.7 Projectile Manufacturing ................................................................... 122 6.2.8 Projectile Loader ............................................................................... 122 7.0 Project Prototype Testing ........................................................................... 123 7.1 Safety ...................................................................................................... 123 7.1.1 Location ............................................................................................ 124 7.1.2 Individual Coil Tuning ....................................................................... 124 7.2 Projectile Sink ......................................................................................... 125 7.4 Range Testing ......................................................................................... 125 7.5 User Interface Testing ............................................................................. 126 7.6 Power and Charging ............................................................................... 128 8.0 Administrative Content ............................................................................... 129 8.1 Parts Lists and Budget ............................................................................ 129 8.2 Timeline .................................................................................................. 135 Appendices ........................................................................................................... I Appendix A – Copyright Permissions ................................................................. I Appendix B – References ................................................................................ IV Appendix C – Simulator Source code .............................................................. VI Group 10 Senior Design Project Documentation P a g e | 1 1.0 Executive Summary The development of projectile launchers with chemically propelled projectiles reached a plateau more than seventy years ago. Since then only marginal improvements have been made. Most of those improvements that have been made come
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