Accession Number : ADD008722

Title :   Shock Simulator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Soper,William G

Report Date : 10 Mar 1981

Pagination or Media Count : 10

Abstract : A projectile ground shock simulator is described for simulating the force pulse on a projectile in testing for shock effect on the guidance system of the projectile. 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 force 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. (Author)

Descriptors :   *Patent applications, *Simulators, *Springs, Shock(Mechanics), Measurement, Guided projectiles, Parts, Loads(Forces), Stiffness, Pistons, Liquids, Solids, Drop tests, Energy absorbers, Bulk modulus, Compressive properties, Formaldehyde, Melamines, Nylon, Water, Ethyl ethers, Synthetic rubber, Greases, Firing tests(Ordnance)

Subject Categories : Test Facilities, Equipment and Methods
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE