MIL-STD-167-1 Mechanical Vibrations Of Shipboard Equipment Type I - Environmental And Type Ii - Internally ExcitedThis standard specifies procedures and establishes requirements for environmental and internally excited vibration testing of Naval shipboard equipment installed on ships with conventionally shafted propulsion see 6.1.e and 6.1.f.

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MIL-STD-167-1A

TABLES	PAGE
I. Vibratory displacement of environmental vibration...........................................................................................6
II. Duration of endurance test in a given orthogonal direction at each test frequency...........................................7
III. Vibratory displacement of environmental vibration for mast mounted equipment .........................................7
IV. Types of balancing ..........................................................................................................................................8 FIGURES PAGE 1. Type I environmental vibration limits (black bars represent a graphical presentation of table I expressed in displacement, velocity, and acceleration).........................................................................................................13 2. Vibration acceptance criteria for Type II vibration .........................................................................................14 3. Minimum static deflection of mounting for Type II vibration test ..................................................................15

Appendix A..........................................................................................................................................................16

A.1 SCOPE..........................................................................................................................................................16

A.1.1 Scope .........................................................................................................................................................16

A.2 PROCEDURE...............................................................................................................................................16

A.2.1 Determining and displaying transmissibility .............................................................................................16

A.2.1.1 Transmissibility magnitudes ...................................................................................................................16

A.2.1.2 Transmissibility and frequency...............................................................................................................16

A.2.2 Identifying response prominences .............................................................................................................16

A.2.3 Selecting endurance test frequencies .........................................................................................................17

A.2.3.1 Non-response prominence frequencies where functional or structural integrity is affected ...................17

A.2.3.2 Frequencies where response prominences have been identified.............................................................17

A.2.4 Guidance for specifiers ..............................................................................................................................18

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