Mil-std-167-2a Pdf !!hot!! | Web INSTANT |
Maintain meticulous records of testing, including resonance dwells and functional tests.
: It applies to naval equipment mounted on ship structures, including propulsion shafting and reciprocating machinery.
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Endurance testing to ensure the machinery survives prolonged exposure to maritime operational stresses.
Verification that equipment functions without degradation under specified amplitudes. Endurance testing to ensure the machinery survives prolonged
MIL-STD-167-2A categorizes vibrations into five specific types based on their source and impact:
| Feature | MIL-STD-167-2A | MIL-STD-810H (Method 514) | | :--- | :--- | :--- | | | Navy Shipboard (Surface & Submarine) | General Military (Ground, Air, Sea) | | Frequency Range | 2 Hz to 50 Hz (often extended to 200 Hz) | 5 Hz to 500 Hz+ | | Duration | 2 hours per axis (Typically) | 1 hour per axis (Typical) | | Key Focus | Low-frequency, high-displacement vibration from hull flex | Broadband transport and operational vibration | | Contractual Use | Mandatory for Navy shipboard equipment | Optional unless specified by Navy | Maintain meticulous records of testing
Understanding MIL-STD-167-2A: The Ultimate Guide to Shipboard Reciprocating Machinery and Propulsion Vibration Testing
