is a critical United States Department of Defense (DoD) test method standard that establishes requirements for the mechanical vibrations of reciprocating machinery, propulsion systems, and shafting on naval ships. Dated May 21, 1992, it serves as a specialized companion to MIL-STD-167-1A , focusing specifically on internally excited and externally imposed vibrations for heavy machinery. Purpose and Scope
Evaluates the axial forces pushed down the length of the ship's main shaft, driven primarily by propeller wake variations.
Compare MIL-STD-167 with complementary standards like .
: Address internal and external vibrations for reciprocating machinery and equipment.
Reduces maintenance costs by limiting destructive resonance.
This private website maintains a large library of military standards, including MIL-STD-167-2A. It is freely accessible and well-formatted for printing. Search for "MIL-STD-167-2A" and look for the PDF icon.
Ensure that sensor placement and data acquisition parameters perfectly match Navy expectations.
The standard mandates a resonance search before, during, and after a durability run. If resonances exist within the equipment’s operating frequency range, the test must dwell at those resonant frequencies for a specified duration (typically 2 hours per resonance) to simulate fatigue life.
If your equipment is destined for a submarine, additional considerations apply. Submarines often reference MIL-STD-167-2A but with tighter amplitude limits due to acoustic stealth requirements.
Bearings, couplings, and gears attached to the main drive.
Engineers, defense contractors, and procurement officers frequently search for the to ensure compliance during the design, manufacturing, and testing phases of naval hardware. This article provides a comprehensive overview of MIL-STD-167-2A, its core purpose, how it differs from related standards, and its practical application in naval engineering. What is MIL-STD-167-2A?
is a critical United States Department of Defense (DoD) test method standard that establishes requirements for the mechanical vibrations of reciprocating machinery, propulsion systems, and shafting on naval ships. Dated May 21, 1992, it serves as a specialized companion to MIL-STD-167-1A , focusing specifically on internally excited and externally imposed vibrations for heavy machinery. Purpose and Scope
Evaluates the axial forces pushed down the length of the ship's main shaft, driven primarily by propeller wake variations.
Compare MIL-STD-167 with complementary standards like .
: Address internal and external vibrations for reciprocating machinery and equipment.
Reduces maintenance costs by limiting destructive resonance.
This private website maintains a large library of military standards, including MIL-STD-167-2A. It is freely accessible and well-formatted for printing. Search for "MIL-STD-167-2A" and look for the PDF icon.
Ensure that sensor placement and data acquisition parameters perfectly match Navy expectations.
The standard mandates a resonance search before, during, and after a durability run. If resonances exist within the equipment’s operating frequency range, the test must dwell at those resonant frequencies for a specified duration (typically 2 hours per resonance) to simulate fatigue life.
If your equipment is destined for a submarine, additional considerations apply. Submarines often reference MIL-STD-167-2A but with tighter amplitude limits due to acoustic stealth requirements.
Bearings, couplings, and gears attached to the main drive.
Engineers, defense contractors, and procurement officers frequently search for the to ensure compliance during the design, manufacturing, and testing phases of naval hardware. This article provides a comprehensive overview of MIL-STD-167-2A, its core purpose, how it differs from related standards, and its practical application in naval engineering. What is MIL-STD-167-2A?