An Improved Method of Determining Shock Test Specifications for Fire Control Equipment
Technical research rept.
FRANKFORD ARSENAL PHILADELPHIA PA
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This program was conducted to improve the procedure for developing and executing specification laboratory shock tests of production type fire control instruments FC. Many laboratory tests were conducted using FC of M29 Mortar, M102 Howitzer, and M551 Sheridan Vehicle, since on a structural dynamics basis these instruments represent most FC Groups. For various g levels and impulse times, each instruments resulting laboratory shock test spectra from each combination of location and direction were compared to composite field spectra from that same combination for correlation. Reported here is a recommended selection of proper g levels with corresponding impulse times which produce adequate laboratory simulation of field results without severe over or under - testing or erroneous, laboratory induced failure. Additional benefits are 1 a reduction in present number of specified shock tests without significant information loss, 2 good simulation of field results using standard commercially available shock machines, 3 substantial cost reduction via less complex test procedure and simpler fixturing.
- Combat Vehicles
- Fire Control and Bombing Systems