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 APPENDIX A

A.2.4  Guidance for specifiers.  Carefully determine all functions of the equipment, which must be preserved under normal shipboard vibration.  Determine the functional requirements that must be met during the vibration tests including the appropriate test acceptance criteria and include them in the procurement documents.  A careful and thorough evaluation of the functional requirements will significantly reduce the potential for problems, define the basis for instrumentation selection and placement, and help in the interpretation of test results.

If possible, determine how and where to instrument the test article based on the functional requirements and expected responses or consider requiring the vendor to make this determination.  If an area of concern cannot be directly instrumented, consider instrumenting to find alternate manifestations of this area of concern (e.g., voltage fluctuations, pressure variations, noise, contact closures).  While analyses of the test and test equipment (if performed) can provide insights into possible test responses of some equipment, often neither extensive nor complicated analyses are needed and common sense alone can often be used to establish reasonable locations of instrumentation if the functional requirements are well known.

If the test vendor will determine the instrumentation scheme, depending on the equipment, consider requesting the instrumentation scheme for information or approval.

Depending on the equipment, consider requiring prior approval of frequencies used for endurance testing.

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