DATA ITEM DESCRIPTION
Title: VIBRATION AND ACOUSTIC ANALYSES REPORTS – AIR VEHICLE
Preparing Activity: AF 11 (AFLCMC/EZFS)
Project Number: ENVR-2017-005
Use/Relationship: The Vibration and Acoustic Analyses reports will be developed to describe
the analyses and tests used to establish the vibration and acoustic phenomena comprising the
environment of structure and equipment which support the design of the air vehicle as required
by MIL-STD-1530, Aircraft Structural Integrity Program (ASIP).
(Copies of this document are available online at http://quicksearch.dla.mil
.)
This Data Item Description (DID) contains the format, content, and intended use information for
the data deliverable resulting from the work task described in the solicitation.
Requirements:
1. Reference documents. 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.
2. Format. The contractor’s format is acceptable.
3. Content. The report describes the contractor’s analyses and testing activities associated
with design for vibrational and acoustic loading environments. The content shall include the
following:
a. Loads/Environment Analysis: The loads/environment analysis report shall document the
approach used to establish the vibration loading, acoustic loading, and environmental
exposure of structure and equipment for ground and flight operations. Describe all vibration
and acoustic loading sources including, but not limited to:
propulsion and other power
systems operation, gust loads, boundary layers, wakes, oscillating shocks and other
aerodynamic disturbances, ground operations, cavity noise, missile launche
Describe the means of substantiation of any design provisions employed to control vibration
or acoustic load levels. Predicted levels for harmonic and random vibration and/or acoustic
load sources or combinations of sources shall be documented with graphs, calculations,
data tables, etc. in sufficient detail to derive the exposure of the system by physical location
and with sufficient frequency resolution to evaluate local design features. Vibration and
acoustic loading shall be documented with graphs and tables that define the loading as a
function of frequency and exposure time. Document temperature and other relevant service
environments that contribute to vibration and/or acoustic loading.
b. The reports shall document the usage data in t
erms of mission types, mission mix,
storage, and transportation used to develop the repeated loads/environment spectra for use
in the service life analysis.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.
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