Gun Structural Dynamic Considerations for Near-Target Performance of Hypervelocity Launchers.
Final rept. Jan 97-Jan 98,
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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In many settings, especially urban warfare, targets may be anticipated to occur very near the weapon platform, or behind concrete walls, much to the hindrance of missiles. Direct guns offer distinct advantages for near-target threats. Nonetheless, both accuracy and performance of long rod penetrators are affected by out-of-plane velocities as well as initial yaw and pitch rates for conventional antitank systems. These components are driven, in part, by the exit conditions of a projectile upon discharge from the launcher. By ignoring cost, logistics, and current technology limitations, these exit conditions may be corrected by smart projectiles, provided the duration of flight is sufficient in length for corrective action. Still, this luxury may not be permissible for near-target performance. It is therefore important in gun design to consider the structural dynamic performance of the launcher system to help mitigate pointing error and angular momentum of rounds upon shot exit It is the purpose of this repon to present emerging technologies relevant to the structural dynamic performance of guns, electromagnetic EM or otherwise.
- Fluid Mechanics