Patent, Filed 10 Mar 81, patented 15 Mar 83,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A projectile ground shock simulator for simulating the force pulse on a projectile in testing for shock effect on the guidance system of the projectile is disclosed. The simulator incorporates a liquidsolid material as an energy absorbing and storing spring for simulating the force pulse on the projectile. The projectile is positioned in a drop tube and impacted with a drop vehicle to simulate the forces created during firing of the projectile. The drop vehicle is provided with the liquidsolid spring having a piston and cylinder on the impact face of the drop vehicle. The cylinder is filled with a liquid or solid polymer material having a high bulk modulus of compressibility which gives the spring volumetric stiffness. The spring thus duplicates the force pulse acting on a fired projectile and also allows for the drop vehicle to be reused.
- Ammunition and Explosives