Before beginning, ensure you have the following tools available:
Simulating the shock environment in a controlled laboratory setting. br 3021 shock manual
: Focuses specifically on shock mountings , providing details for rubber mounts like the "Type PD" series used to isolate equipment from hull movement. Technical Shock Grades Before beginning, ensure you have the following tools
: The U.S. Navy equivalent for high-impact shock testing of shipboard machinery. JSS 55555: 2000 Navy equivalent for high-impact shock testing of shipboard
. Formerly known as NES 1004, this Book of Reference is the "bible" for mechanical shock resistance in naval environments. Why does BR 3021 matter?
Compression damping controls how the shock resists collapsing when hitting a bump.
: Required for equipment fitted above the waterline . The requirements are slightly lower but still rigorous, at 50g (vertical) and 22g (lateral) . Why Does It Matter?