Mechanical vibrations of shipboard equipment (type 1 – environmental and type ii – internally excited) contents
MIL-STD-810H, Environmental Engineering Considerations and Laboratory Tests
Last Updated 29 Oct 2026
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4 tables appear under this heading.
1. PDF page 1001
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1. SCOPE
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1.1 PURPOSE
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1.2 APPLICABILITY
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1.3 CLASSIFICATION
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1.4 LIMITATIONS
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2. APPLICABLE DOCUMENTS AND DEFINITIONS
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2.1 GENERAL
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2.2 DEFINITIONS
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3. INFORMATION REQUIRED
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3.1 PRETEST
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3.2 DURING TEST
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3.3 POST-TEST
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4. GENERAL REQUIREMENTS - TEST PROCESS
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4.1 TEST FACILITY
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4.2 CONTROLS
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4.2.1 CONTROL STRATEGY
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4.2.1.1 ACCELERATION INPUT CONTROL STRATEGY
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4.2.1.2 FORCE CONTROL STRATEGY
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4.2.1.3 ACCELERATION LIMIT STRATEGY
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4.2.1.4 ACCELERATION RESPONSE CONTROL STRATEGY
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4.2.1.5 WAVEFORM CONTROL STRATEGY
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4.2.2 TOLERANCES
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4.2.2.1 ACCELERATION SPECTRAL DENSITY
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4.2.2.2 PEAK SINUSOIDAL ACCELERATION
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4.2.2.3 FREQUENCY MEASUREMENT
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4.2.2.4 CROSS AXIS SENSITIVITY
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4.3 TEST INTERRUPTION
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4.3.1 INTERRUPTION DUE TO LABORATORY EQUIPMENT MALFUNCTION
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4.3.2 INTERRUPTION DUE TO TEST ITEM OPERATION FAILURE
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4.3.3 INTERRUPTION DUE TO A SCHEDULED EVENT
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4.3.4 INTERRUPTION DUE TO EXCEEDING TEST TOLERANCES
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5. DETAILED REQUIREMENTS
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5.1 PROCEDURE I (TYPE I) - ENVIRONMENTAL VIBRATION
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5.1.1 BASIS OF ACCEPTABILITY
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5.1.2 TEST PROCEDURES
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5.1.2.1 TESTING MACHINE
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5.1.2.2 ADDITIONAL TEST INSTRUMENTATION
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5.1.2.3 METHODS OF ATTACHMENT
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5.1.2.4 VIBRATION TESTS
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2. PDF page 1002
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5.1.2.5
TEST DOCUMENTATION
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5.1.3
EXEMPTION.
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5.1.4
EXTENSION OF PREVIOUS TESTING
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5.1.4.1
EXTENSION DOCUMENTATION
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5.1.5
ALIGNMENT CRITERIA
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5.2
PROCEDURE II (TYPE II - INTERNALLY EXCITED VIBRATION)
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5.2.1
BASIS OF ACCEPTABILITY
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5.2.2
BALANCE PROCEDURE FOR RIGID ROTORS
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5.2.2.1
BALANCING METHODS FOR RIGID ROTORS.
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5.2.2.2
BALANCE LIMITS FOR RIGID ROTORS
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5.2.3
BALANCE PROCEDURE FOR FLEXIBLE ROTORS
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5.2.3.1
BALANCE LIMITS FOR FLEXIBLE ROTORS
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5.2.3.2
VIBRATION TEST PROCEDURE..
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5.3
ANALYSIS OF RESULTS
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5.3.1
PHYSICS OF FAILURE
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5.3.2
QUALIFICATION TESTS..
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5.3.3
OTHER TESTS
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6.
REFERENCE/RELATED DOCUMENTS.
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6.1
REFERENCED DOCUMENTS
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6.2
RELATED DOCUMENTS..
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3. PDF page 1002
FIGURE 528.1-1.
TYPE I ENVIRONMENTAL VIBRATION LIMITS (BLACK BARS REPRESENT A GRAPHICAL PRESENTATION OF TABLE 528.1-I EXPRESSED IN DISPLACEMENT, VELOCITY, AND ACCELERATION)
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FIGURE 528.1-2.
VIBRATION ACCEPTANCE CRITERIA FOR TYPE II VIBRATION
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FIGURE 528.1-3.
MINIMUM STATIC DEFLECTION OF MOUNTING FOR TYPE II VIBRATION TEST.
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4. PDF page 1002
TABLE 528.1-I.
VIBRATORY DISPLACEMENT OF ENVIRONMENTAL VIBRATION
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TABLE 528.1-II.
DURATION OF ENDURANCE TEST IN A GIVEN ORTHOGONAL DIRECTION AT EACH TEST FREQUENCY
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TABLE528.1-III.
VIBRATORY DISPLACEMENT OF ENVIRONMENTAL VIBRATION FOR MAST MOUNTED EQUIPMENT