MIL-STD-167-2A is a United States Military Standard that establishes the requirements for mechanical vibrations in naval shipboard equipment, specifically focusing on reciprocating machinery , propulsion systems, and shafting MIL-STD-167-1A
Type III (Internal Excitation):
Vibrations created by reciprocating machinery (like a diesel engine's pistons).
Common Misconceptions About MIL-STD-167-2A
Where to Find MIL-STD-167-2A PDF
Summary Table for Quick Reference
- Determine which type applies – Type I is almost universal; Type II only for equipment with internal rotating parts.
- Check for conflict with MIL-STD-810 (vibration for ground/air) – MIL-STD-167-2A is stricter for shipboard low-frequency, high-displacement tests.
- Coordinate with NAVSEA – They may issue a waiver or modify parameters via a System Specification.
: Defining acceptable stress levels within the operating speed range of propulsion systems to prevent fatigue and failure. Testing Procedures