A new advanced railgun system for debris impact study

摘要: Abstract: The growing quantity of debris in Earth orbit poses a danger to users the orbital environment, such as spacecraft. It also increases risk that humans or manmade structures could be impacted when objects reenter Earth's atmosphere. During design spacecraft, requirement may specified for surviv-ability spacecraft against Meteoroid / Orbital Debris (M/OD) impacts throughout mission; further-more, structure is designed insure its integrity during launch and, if it reusable, descent, re-entry and landing. In addition, has provide required stiffness order allow exact positioning experiments antennas, protect payload space environment. decrease probability failure caused by M/OD, maneuver needed avoid M/OD dimensions larger than 10cm, but with less 1cm shields are spacecrafts. therefore necessary determine impact-related mechanisms associated ballistic limit equations (BLEs) typical components subsys-tems. methods used obtain numerical simulations la-borato-ry experiments. perform an high energy characterization layered structures, new ad-vanced electromagnetic accelerator, called railgun, been assembled tuned. A railgun electrically powered projectile launcher. Such device made up pair parallel conducting rails, which sliding metallic armature accelerated along effect (Lorentz force) cur-rent flows down one rail, into then back other thanks power pulse given bank capacitors. tunable supplier set capacitors charging voltage at desired level: this way Rail Gun can tuned function bullet velocity. This facility able analyze both low velocity impacts. simulation performed using Ansys Autodyn code damage. experimental results show railgun-device good candidate impact testing materials range.