The multifragment simulator is a laboratory system that is designed to simulate the impact by multiple fragments on armor plate under test.The fragments simulated represent fragments (or shrapnel) from a fragmenting weapon such as a mortar or artillery round.The multifragment simulator can simulate the impact of up to three 50 caliber fragments.The simulated fragments used in the multifragment simulator are made from 4340H steel in accordance with Mil-P-46593A.
The multifragment simulator is made up of three universal receivers, three 50 caliber barrels, a firing/aiming platform, and an electronic control system.(Only two barrels and universal receivers are shown in the pictures.The third is being used by itself, temporarily.) The barrels and universal receivers were purchased from H-S Precision, Inc., and the universal receiver was designed to be fired manually; no electronic firing option was offered.We converted the universal receiver from a manually fired system to a remote electronically fired system.This was accomplished without modifying the universal receiver in any way except to remove the manual firing system and replace it our electronic firing system.The firing/aiming platform is designed so that each of the three universal receivers and barrels can be aimed in azimuth and elevation independently, and they can be fired simultaneously or with programmable time delays between each firing.
The multifragment simulator is located at the U. S. Army Corps of Engineers in Vicksburg at the Engineering Research and DevelopmentCenter.
Revised July 2010
Specialty Fabrication, Machining, Welding and Painting