Accession Number : ADD013584

Title :   Shock Simulator.

Descriptive Note : Patent, Filed 10 Mar 81, patented 15 Mar 83,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Soper, William G

Report Date : 15 Mar 1983

Pagination or Media Count : 5

Abstract : 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 liquid/solid 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 liquid/solid 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.

Descriptors :   *GROUND SHOCK, *PATENTS, *PROJECTILES, *SIMULATORS, AIR DROP OPERATIONS, BULK MODULUS, COMPRESSIVE PROPERTIES, LIQUIDS, POLYMERS, PULSES, SHOCK, SOLIDS, SPRINGS, STIFFNESS, VEHICLES, VOLUME

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE