Despite the large number of gunshot wounds treated in civilian and military practice, embolization of missiles to the pulmonary artery is relatively uncommon. In a review of 7,500 medical reports from casualties from the Vietnam Vascular Registry, only 22 patients with known vascular trauma had missile emboli (0.3%), and of those, only 4 (.0005%) were to the pulmonary artery. Causative agents o...

The use of visual sensing to acquire and track targets has the potential to significantly reduce cost in comparison to active sensors. We present preliminary results for a system that combines a webcam with a toy foam missile launcher on an altitude-azimuth mount. The controller uses foreground segmentation to identity new elements in a scene. It then applies SURF feature detection and a pinhol...

The flight environment of the Standard Missile, Block IV A interceptor involves high speeds that place severe aerodynamic and aero-thermalloads on the missile optical window and sensor. The supersonic flow over the missile produces aero-optical effects that can degrade IR seeker performance. This report summarizes an analysis of aero-optical aberrations due to shock front and shear layer densit...

The mathematical and physical models of the underwater submerged gun are established to study flow field distribution characteristics muzzle at different water depths. Schnerr–Sauer cavitation model realizable k–ω transport turbulence based on Reynolds-averaged Navier–Stokes method employed. for 12.7 mm that is launched numerically simulated by combining user-defined functions overlapping mesh ...

The application of a new nonlinear robust control strategy to the design of missile autopilots is presented. The control approach described and demonstrated here is based upon the numerical solution of the Hamilton-Jacobi-Isaacs equation by Successive Galerkin Approximation. Using this approach, feedback controllers are computed by an iterative application of a numerical Galerkin-type PDE solve...

The use of a three dimensional Discrete Element Method (DEM) is proposed to study concrete submitted to flat rigid nose shaped missile impacts. Spalling, scabbing, penetration and perforation events are characterized by the model. The reduction in missile velocity is compared with real test cases made by the French Atomic Agency. The first results show a good agreement between the numerical and...