Pdf [portable] | Mil-std-167-2a
You can find official versions and status updates (such as its 1992 revision date) through the DLA Quick Search Official Document Search or specialized repositories like Intertek Inform acceptance criteria
A: Yes, it remains an active standard for shipboard equipment vibration immunity.
Deals with the "side-to-side" or whirling motion of the propulsion shafting.
The answer is for naval procurement. Here is the difference: mil-std-167-2a pdf
You can access official versions of this document through the DLA Quick Search portal or view reference copies on platforms like Scribd . Scope and Purpose
During physical testing, the standard defines exactly where sensors (accelerometers or velocity transducers) must be placed. It provides clear charts plotting allowable vibration displacement or velocity against frequency. If a piece of machinery exceeds these thresholds during factory acceptance testing (FAT) or sea trials, it fails qualification. Why You Need the Official MIL-STD-167-2A PDF
As a Military Standard, MIL-STD-167-2A is maintained by the U.S. Department of Defense (DoD). Because it is a controlled document regarding specific naval systems, accessing the most current version is vital. You can find official versions and status updates
A standard MIL-STD-167-2A document is broken down into structured sections that guide engineers from basic definitions to exact calculation formulas. 1. Scope and Classification
MIL-STD-167-2A is a critical Department of Defense standard focused on the , specifically for reciprocating machinery and propulsion systems.
To ensure complete compliance, it is common to use MIL-STD-167-2A alongside other standards: Here is the difference: You can access official
Covers vibrations generated by the equipment itself, such as rotating machinery. Externally Imposed Vibration:
Torsional vibration represents the cyclical twisting and untwisting of a shaft along its longitudinal axis. This occurs predominantly in , such as diesel engines and piston compressors. As cylinders fire unevenly, they deliver periodic torque pulses to the crankshaft.