Probes are located at the breech and muzzle ends of the gun to monitor the voltage between the rails. In this video you can find a collection of the tests. The invention was officially patented in 1904, although its development reportedly started as early as 1845. The mass launcher fires a 4ounce projectile to a velocity capable of splitting a 1 x 2 pine board on impact as shown in our video clips. Development of a naval railgun request pdf researchgate. Railgun experiments at the university of texas center for. Physics 210 rail gun project home princeton university. Thats what happens when an enormous electromagnetic gun sends its ammo rocketing 5500 feet in a single. An electromagnetic railgun design and realization for an electrical engi. Development of the high efficiency laser diode makes possible a practical ray gun where a matrix of these diodes can produce a collimated efficient electromagnetic beam of energy. Railguns will also need rail replacements regularly, to deal with warping and misfires fusing the ammo to the rails. The future weapon of indian navy by defenceupdate rail gun is a weapon capable of launching projectile without the usage of explosives or propellants, but, are launched at extremely high velocities, mach 7 at sea level or more.
It is an entirely electrical gun that accelerates a conductive projectile along a pair of metal rails using the same principles as the homopolar motor. Electromagnetic launchers at cemut have been used in a wide variety of experiments. It uses a form of electromagnetic energy known as the. As others have said we dont really have the power supply for such a thing thats battlefieldworthy, and youd need t. Currently, we have been able to reach velocities around 9 kms with the railgun. Navys electromagnetic railgun is capable of launching projectiles at 4,500 mph and hitting targets 100 miles away, faster and farther than any other gun. It leads to j max 690 gam 2 on the left rail to be higher than that, which is 640 gam 2, in the first case. This is the most compact version currently existent. Lets go over some of the basic principles for the railgun to operate. This paper summarize all important steps during coil gun design, such as physical laws of the coil gun, preliminary calculations, the. A set of parallel, metal rails, a huge powersource like a capacitorbank and a metal projectile. The navy also plans to test a shipmounted electromagnetic rail gun on navy vessels, service officials said. Complete model of the railguns system including projectiles trajectory 31.
Latest in 3dprinting mit 3dprinted the shapeshifting future of pasta 05. Also explore the seminar topics paper on railgun with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. In november 2017, indias defence research and development organisation carried out a successful test of a 12 mm square bore electromagnetic railgun. Glf500f handheld electromagnetic induction sealing user. Navy lasers, railgun, and hypervelocity projectile. A railgun consists of a power supply that drives current through a pair of conductors or rails to accelerate a projectile to high velocity. Future destroyers likely to fire lasers, rail guns. These are brief instructions on how to make a homemade railgun. The oldest electromagnetic gun came in the form of the coilgun, the first of which was invented by norwegian scientist kristian birkeland at the university of kristiania today oslo. Us navys electromagnetic railgun leaves the lab for field demos. Under shorted rail conditions, the em environment is quasistatic and. Electromagnetic rail gun emrg the use of a rail gun for the u.
During this phase, we will advance the railgun by maturing the launcher and pulsed power from a single shot operation to a. Design, fabrication, and testing of an electromagnetic rail. Design, fabrication, and testing of an electromagnetic. But an electromagnetic rail gun does away with many of these negatives. Glf500f microcomputerbased electromagnetic induction sealing machine is used to seal the plastic, glass or nonmetallic bottle and cupshaped container based on electromagnetic induction principle. Feb 15, 2014 the railgun has a much larger possible power than a powder gun. The emrg team includes two masters aero students, two senior ee students, and three senior me students. Would the recoil of a handheld railguncoilgun be too big for a human if the gun accelerated a 10 gram.
Navy lasers, railgun, and gunlaunched guided projectile. It is believed that the railgun can reach up to 140 kms. Nov 12, 2015 this guys ridiculous homemade rail gun shoots ionized plasma bullets. Become very unpopular very fast with this diy emp generator. As its name shows gun in which a pair of rails is used. For permission to reproduce, please write a letter to. Dude builds worlds first semiautomatic portable railgun. Design, fabrication, and testing of an electromagnetic rail gun for the repeated testing and simulation of orbital debris impacts. The projectile normally does not contain explosives, instead relying on the projectiles high speed and kinetic energy to inflict damage. Us navys electromagnetic railgun leaves the lab for field. Oct, 2016 the em rail gun is an electrically powered electromagnetic projectile launcher. This homemade rail gun shoots ionized plasma bullets. A railgun is a device, typically designed as a weapon, that uses electromagnetic force to launch high velocity projectiles.
China may be reverseengineering mahem, the pentagons handheld railgun. One of the most anticipated weapon systems of the last quarter century looks like it is nearly ready for action. Nrl has initiated a program in electromagnetic em launcher technology focusing on railgun materials science issues. Navys new railgun can hurl a shell over 5,000 mph wired. Its latest weapon is an electromagnetic railgun launcher. Pdf electromagnetic field measurements near a railgun. Tests of a 30 mm version are planned to be conducted. Instead of explosives, it uses powerful magnets to sling warheads down its barrel and into the air. This fascinating technology, which uses highpower electromagnetic energy instead of explosive chemical propellants to launch projectiles farther and faster than any previous system, is currently in phase 2 of the program. Navy is considering the development of electromagnetic railguns for future ships for naval surfacefire. Some electromagnetic considerations for design of railgun electromagnetic projectile launchers carl e.
The electromagnetic railgun is one such electromagnetic launcher which consists of two. Electromagnetic em railgun bae systems united states. The proximity effect makes the right rail like a shield and increases the current density of nearby rail. Research on proximity effect of electromagnetic railgun. Committed to excellence background em guns have been studied for many years theoretical benefits over powder guns of. When all wired up, the railguns 20 lbs of capacitors3 pairs of 300j, 350v, 5500uf unitscan electrify the guns rails to fire tiny aluminum rounds like this. But we might soon be seeing the last of those horrifying gifs. Guy creates handheld railgun with a 3dprinter engadget.
Fuzing for use in an electromagnetic em gun barry schwartz fred herr robert bryan us army ardec 6 april 05. This guys ridiculous homemade rail gun shoots ionized plasma bullets. The electromagnetic railgun made its public debut this week at the navys future. Analysis of the advantages and disadvantages of multiturn. Many guns have some sort of accessory rail, or rails. If you can put up with the extra weight, bulk, and complexity, you can add flashlights, sighting aids, and all sorts of stuff to your pistol. Navy is tapping the power of the force to wage war its latest weapon is an electromagnetic railgun launcher. A comparative study and analysis of the simple and multipleturn railgun systems from an engineering perspective is presented. This machine is widely used in medical industry, chemical. Take a look at some very slow motion camerawork of the single shot electromagnetic railgun prototype in action. Explore railgun with free download of seminar report and ppt in pdf and doc format. The em rail gun is an electrically powered electromagnetic projectile launcher.
Rail gun rails in particular are subject to a lot of wear even from normal use. Oct 17, 2015 when all wired up, the railguns 20 lbs of capacitors3 pairs of 300j, 350v, 5500uf unitscan electrify the guns rails to fire tiny aluminum rounds like this. Below is a schematic view of the rail gun from the top. The navy wants to step this powderless gun up to fire 10 shots a minute, with a 5,000 foot per second muzzle velocity. The railgun has a much larger possible power than a powder gun. Hummingbirdinspired wind turbines, and more in the week that. Electromagnetic coil gun design and construction abstract a singlestage, sensor less, coil gun was designed to demonstrate the capability to accelerate a ferromagnetic projectile to high velocity. The simple railgun system, which has only one pair of rails to let. China may be reverseengineering the handheld railgun. Design of the compulsator began with research through conference and research papers.
Some electromagnetic considerations for design of railgun. In march 2018, it was reported that china confirmed it had begun testing its electromagnetic rail gun at sea. If youve seen the pictures of the navys rail gun testing you wont want to be anywhere near the railgun when it fires. A lighter projectile can be fired at considerably higher velocity. In order to make this project, it is necessary to work with high voltages, so dont even think about making a project like this unless you are familiar with electricity, especially ca.
Due to the proximity effect, the magnetic lines on the left rail are compressed by the magnetic field on the right rail. Handheld rail guns the likelihood of seeing handheld rail guns in the future, like the ones used in the quake and metal gear solid series is quite low. The railgun uses a pair of parallel conductors rails, along which a sliding armature is accelerated by the electromagnetic effects. For years, weve been sharing videos and images showing the destructive power of the united state navys electromagnetic railgun. Exploring electromagnetic acceleration of rail guns. Navy is tapping the power of the force of star wars fame to wage war. This brilliant maniac built his own homemade railgun. Navy electromagnetc railgun mach 7 fire tests 2008. The electromagnetic railgun its an awesome gun that can fire up to mach 7 shells. Similar to a coilgun, a railgun works by magnetic propulsion. The navys horrifyingly powerful electromagnetic railgun. Navy has been considered for some time, but even more so now with the advent of the allelectric ship. Dec 02, 2015 china may be reverseengineering mahem, the pentagons handheld railgun. Dec 09, 2017 the electromagnetic railgun its an awesome gun that can fire up to mach 7 shells.
Jeff maniglia, jordan smiroldo, alex westfall, and guy zohar 1 california polytechnic state university, san luis obispo, ca 93401 an electromagnetic railgun emrg was designed, built, and tested, capable of firing a. There wasnt much left of the 23pound kilogram bullet, just a scalded piece of squat metal. These caps are just the power supply for the rail gun, and arent part of the structure of this already large, 250 pound gun. The first category is a beam weapon, where a directed energy is transmitted as electromagnetic radiation, particle beams of ions, or other subatomic projectiles. Exploring electromagnetic acceleration of rail guns tyler rhoades physics department, the college of wooster dated. December 15, 2011 a simple rail gun was constructed from a pair of aluminum rods and a 0. The sr1 semiautomatic portable railgun is a field augmented circular bore plasma armature railgun capable of firing 6x19mm conductive armatures at close to the speed of sound and plasma. Electromagnetic em railgun bae systems international. Is a compact, man portable practical rail gun possible. The us navy is working on a few railgun projects that will eventually replace the largest guns on the fleets cruisers and destroyers. Lets first take a look at how a railgun or magnetic accelerator works, a video about the whole topic can be found here. The electronic synchronization of the actuators allows for this system to install both headed and slug rivets with ease.
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