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Compliance with MIL-STD-167-2A is essential for defense contractors and manufacturers.
Focuses on the requirements for balancing components to minimize internally induced vibrations.
: The original version was published on May 21, 1992 , and it remains valid for use in naval acquisitions, as confirmed by its latest Notice of Validation on February 9, 2023.
By respecting the rigor of MIL-STD-167-2A, you ensure that your equipment will survive the harsh, relentless vibration of the world’s most demanding naval platforms. mil-std-167-2a pdf
MIL-STD-167-2A applies to all shipboard machinery, including propulsion systems, generators, pumps, and other equipment. The standard covers both new ship designs and existing vessels undergoing refit or upgrade. It is applicable to all U.S. Navy and Marine Corps ships, as well as other naval vessels.
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
Physical vibration tests for MIL-STD-167-2A are typically performed on specialized equipment like electrodynamic shakers.
It is :
Define structural endurance and reliability under long-term cyclical stresses. Key Classifications and Test Procedures
The standard establishes uniform test methods to eliminate vulnerabilities to steady-state and transient vibrations generated during operations. Core Objectives of the Standard
Companies manufacturing diesel generators, compressors, or pumps for the Navy must build their products to satisfy these parameters.
Reciprocating engines naturally produce fluctuating torques due to the combustion cycle. MIL-STD-167-2A mandates strict limits on torsional stress in crankshafts, camshafts, and propulsion shafting. It outlines the allowable alternating stresses to prevent fatigue failure. 2. Lateral and Longitudinal Vibrations This public link is valid for 7 days
Note: Always ensure you are working with the latest "Notice" (e.g., Notice 1) which indicates the standard has been reviewed and deemed valid for use in acquisition. Importance of Compliance
MIL-STD-167-2A is a military standard that outlines the requirements for the control of vibration and noise on shipboard machinery. The standard is crucial for ensuring that naval vessels operate efficiently, safely, and with minimal disruption to crew and passengers. This write-up provides an overview of MIL-STD-167-2A, its significance, and the key aspects of the standard.
While MIL-STD-167-2A focuses on vibration, it is often paired with MIL-S-901D
Prevents catastrophic mechanical failures that could compromise the ship's operational capabilities or endanger the crew. Can’t copy the link right now
is crucial for ensuring the reliability of reciprocating machinery and propulsion systems on Navy vessels. By adhering to its stringent vibration tests and balancing requirements, manufacturers provide necessary protection against the demanding maritime environment. To begin the certification process, engineers must locate the official MIL-STD-167-2A PDF and review the specific requirements for their equipment type.