DI-ENVR-81647

Mechanical Vibrations of Shipboard Equipment Measurement Test Data

This DID provides a test plan and report of the vibratory test procedure, facility, and measurement system for MIL-STD-167-1 for Type I vibration testing.

Approval DateAugust 9, 2004

AMSC NumberN7530

Preparing Activity—

Project Number—

OPRSH SEA051

DTIC Applicable—

GIDEP Applicable—

Limitation—

Applicable Forms—

Approval Limitation—

Form Version—

DID Formatdd_form_1664

963C CompliantNo

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Supersedes

—

Description & Purpose

—

Application & Interrelationship

—

Use & Relationship

This DID provides a test plan and report of the vibratory test procedure, facility, and measurement system for MIL-STD-167-1 for Type I vibration testing.

a. This DID contains the format and content preparation instructions for that data generated under the work task described by Section 5 of MIL-STD-167-1.

b. This DID is to be applied for each type, class, rating, and grade of equipment to be tested on each contract or order when MIL-STD-167-1 is invoked.

Preparation Instructions

1Reference document.The applicable issue of the documents cited herein, including their approval dates and dates of any applicable amendments, notices, and revisions, shall be as specified in the contract.

2Format and ContentThe Mechanical Vibrations of Shipboard Equipment Measurement Test Data shall be presented in the contractor's format and shall contain Sections I and II.

2.1Section - I Test Plan.This section shall contain the following:

2.1.1Equipment to be evaluated

2.1.2Contract number

2.1.3Ship names and hull number, if known, for which the unit is being acquired

2.1.4Range of frequencies over which the item is to be tested with the corresponding input amplitudes

2.1.5Evaluation measurements to be performed

2.1.6Evaluating activity and test site

2.1.7Test date if established

2.1.8Driver unit horsepower (HP)

2.1.9Rated Electrical Characteristics, including volts, amps, phase, as applicable

2.1.10Rated fluid media parameters (flow rates, temperatures, pressures, etc.), as applicable

2.1.11Equipment rated operational speeds (driver and driven unit revolutions per minute (r/min), etc.), as applicable

2.1.12If applicable, resilient mount manufacturer and model number

2.1.13Dates of manufacture of resilient mounts to be used, as applicable

2.1.14Number of resilient mounts to be used, as applicable

2.1.15If the use of non-Navy standard resilient mounts has been approved, mount characteristics including load rating, in pounds, and resonant frequency data of the mounts used shall be included.

2.1.16All operating modes of the equipment and the rated capacity for each mode, including speed, torque, force, pressure, flow rate, voltage, current, temperatures, etc, as applicable

2.1.17Equipment operating modes to be energized during testing along with the start and finish times of each operation relative to the test sequence

2.1.18Planned equipment load, speed, throttling conditions, suction and discharge pressures, temperatures, etc., as applicable, during each operational mode

2.1.19Planned electrical inputs, outputs, or both during all portions of the test schedule

2.1.20Block diagrams and identification of make and model of measurement and analysis instrumentation used

2.1.21Place and date of the latest laboratory calibration of measurement instruments, system calibration instruments (including field calibrators), and analysis instruments that will be used.

2.3Drawings, sketches or photographs shall be used to provide the following for the test set up:

2.3.1Overall unit dimensions and orientation (vertical, horizontal, etc.) to be used during test

2.3.2Identification of major components

2.3.3Overall unit weight and if known the center of gravity with weights and center of gravity for major components

2.3.4Center of gravity of the combination of the test equipment and the portion of the testing machine that moves at the test frequencies, for each direction of the test if necessary

2.3.5Point and direction of the centroid of force application for each section of the test if necessary

2.3.6Mounting fixture and/or subbase dimensions, materials and weights, for each direction of the test if used

2.3.7Resilient mount locations and dimensions, orientation (vertical, horizontal, angle), approximate load on each mount, attachment locations, for each direction of the test, if used

2.3.8Planned arrangement and description of flexible pipes and ducts, test piping and fittings, electrical power leads, etc., for each direction of the test, as applicable

2.3.9Planned location and description of test instrumentation used to measure r/min, flow rates, total discharge head, etc, for each direction of the test

2.3.10Approximate location and orientation of all vibration measurement instrumentation relative to equipment features or mounts and method of attachment of instrumentation, for each direction of the test.

3Section - II - Test Report.The test report shall contain Section I and contain the following:

3.1Tabular or graphic records of all vibration amplitude levels required to be measured in accordance with Section 5 of MIL-STD-167-1A and shall include both corrected and uncorrected data, along with all correction factors etc., needed to obtain absolute levels and response prominences.

3.2Tabular or graphic records of all transmissibilities for all frequencies tested.

3.3Listing of candidate endurance testing frequencies, and reasoning for excluding frequencies from testing.

3.4List of endurance test frequencies and duration of testing at each frequency.

3.5A description of test results at each endurance test frequency and whether a structural, functional, or no problem was found during testing at that frequency.

3.6Detailed descriptions of any damage or malfunctioning incurred and at what stage in the tests it occurred.When possible, photographs of physical damage shall be included.

3.7Detailed descriptions of any corrective measures taken, including changes in drawings or quality control intended for follow units.

3.8Other pertinent information, such as deviations from test plan or photographs of the methods used in mounting the equipment on the test machine.

3.9Media Requirements.The Mechanical Vibrations of Shipboard Equipment Measurement Test Data electronic media shall be as specified in the contract on the DD 1423.

References

—

Schema v3.0Community-maintained · Verify against ASSIST

Community-maintained — not an official government database.
Verify against ASSIST·GitHub·About·Disclaimer