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Meeting these requirements provides documented evidence that equipment will survive operational vibratory stresses without premature fatigue failure.
Understanding where MIL-STD-167-2A fits among related standards prevents misapplication:
This test applies to the equipment's own rotating elements.
If you have a resonance Q-factor above 10, the standard allows "notching" (reducing input amplitude) only at specific frequencies, provided you prove the equipment can survive the amplified response. Do not notch arbitrarily.
Understanding MIL-STD-167-2A: The Standard for Shipboard Reciprocating Machinery and Propulsion Systems
: It applies to naval equipment mounted on ship structures, including propulsion shafting and reciprocating machinery.
If you are reviewing a supplier’s , ensure the report issuance date is within the last five years; older reports may reference superseded paragraphs.
The standard mandates a resonance search before and after the endurance test. If natural frequencies of components (circuit boards, relays, brackets) fall within the operating range, they must withstand 30-minute resonance dwells.
MIL-STD-167-2A is a military standard that provides guidelines for the vibration testing of shipboard equipment. Here's a comprehensive review of the standard:
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