logging in or signing up Garrison Brad Presentation Arkwright26 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 109 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: February 26, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Portable Mass Driver: Portable Mass Driver Presentation by: Brad GarrisonOverview: Mass Drivers: Overview: Mass Drivers Classification of devices that use electromagnetic forces to propel an object More efficient than existing means of propulsion.A Brief “History” of Mass Drivers: A Brief “History” of Mass Drivers Current Development: Navy/Army Research Amateur ResearchFuture Possibilities: Future Possibilities Peaceful Uses Military Uses Rail Guns Electro Thermal Chemical Guns Ground Based Mass Drivers Orbital Mass Drivers Spacecraft Based Mass DriversTypes of Mass Drivers: Types of Mass Drivers Rail Coil Gauss DiskProject Motivations: Project Motivations Interest in electromagnetism Little research being conducted Current designs are repetitiveProject Goals: Project Goals To construct a Gauss/Coil Gun that is portable and easily operated For the projectile to have a muzzle velocity of approximately 50m/s All components will be powered by a single rechargeable battery High rate of fire (60rpm) Extremely durable Completely safe for anyone to usePossible Designs: Possible Designs Coil Gun Rail Gun Rail Gun Limitations: Rail Gun Limitations High “recoil” force Extremely high temperatures Armature vaporization Expensive materials More applicable to larger designsCoil Gun: Coil Gun Lower operating temperatures than Rail Gun No projectile vaporization Lower, more manageable “recoil” forces Drawbacks of Existing Designs: Drawbacks of Existing Designs Most are driven off of AC power making portability impossible. DC designs operate at a much reduced power. All have a very low rate of fire Most are dangerous to use All are very fragile Capacitors used are expensive and heavy Preliminary Design Complications: Preliminary Design Complications Barrel must be strong enough to withstand compressive force of the coil Capacitor banks can not provide pluses fast enough for the desired rate of fire Capacitors may fail after repeated use Heat build up Initial Design: Initial DesignInitial Design Complications: Initial Design Complications Induction coil produces high voltage pulses not high current pulses Electromagnets will drain the battery even in standby mode Optical gates will further drain battery and introduce more fragile components into the design Microprocessor vulnerable to magnetic fields and heat Second Design: Second Design Induction coil replaced with photo capacitors Electromagnets replaced with permanent magnets utilizing principals of the Gauss Rifle This eliminates the need for photo gates as wellSecond Design: Second DesignCharge Booster: Charge Booster (example is using a bank of 20 1.2V 0.25Amp AA batteries)Charge indicator: Charge indicator The indicator will signal when the capacitor is fully chargedParallel Charging: Parallel ChargingResonance Charging: Resonance Charging Resonance charging will be used to conserve energy and to decrease the charging time Possible Problems: Possible Problems Fragility of permanent magnets Resistive heating of the coil Over working the capacitors Battery lifeFuture Improvements: Future Improvements Optimized coil Heat sinks Improved indicatorsConclusion: Conclusion Coil guns are not practical for portable designs. Superconductors Specialized Capacitors/Semiconductors New coil designs Advanced batteriesReferences: References 1. anothercoilgunsite.com 2. coilgun.com 3. powerlabs.com 4.mgc314.home.comcast.net 5. scitoys.comQuestions?: Questions? You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.