Accession Number : ADA311922

Title :   Calibration and Characterization of the WL/MNMF VHG Tester.

Descriptive Note : Final rept. Jan-Sep 95,

Corporate Author : WRIGHT LAB EGLIN AFB FL

Personal Author(s) : Beliveau, Alain ; Kuschke, Eckhard

PDF Url : ADA311922

Report Date : OCT 1995

Pagination or Media Count : 25

Abstract : The WL/MNMF constructed a very high acceleration (vhg) tester to be used in testing a whole fuze or fuze components under a controlled severe shock environment. This document present the calibration and the characterization of the vhg tester which were conducted to evaluate the range of application and to quantify the performance of the tester. The calibration defined as the peak acceleration generated as a function of the operating pressure is presented for different payloads. A 100 kg peak acceleration can be achieved even for the largest (10 lb) payload. The introduction of a cardboard mitigator between the piston and the anvil is shown to act as a 20 kHz low-pass mechanical filter. Frequency analysis is used to determine to which extent the vhg tester reproduce shock similar to those encountered in hard target penetration by a kinetic energy penetrator. It is shown that the tester can simulate the hard target penetration environment for the frequency range exceeding 25 kHz.

Descriptors :   *GUN BARRELS, *HIGH ACCELERATION, *AIR GUNS, FREQUENCY, PEAK VALUES, ENVIRONMENTS, ACCELERATION, TEST EQUIPMENT, TARGETS, FUZES(ORDNANCE), PENETRATION, SHOCK, KINETIC ENERGY, CALIBRATION, HARDENED STRUCTURES, FUZE FUNCTIONING ELEMENTS.

Subject Categories : Guns
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE