Although applications for Statistical Energy Analysis (SEA)
techniques are more widely used in the aerospace industry today,
opportunities to anchor the response predictions using measured
data from a flight-like launch vehicle structure are still quite
valuable. Response and excitation data from a ground acoustic test
at the Marshall Space Flight Center permitted the authors to
compare and evaluate several modeling techniques available in the
SEA module of the commercial code VA One. This paper provides an
example of vibration response estimates developed using different
modeling approaches to both approximate and bound the response of a
flight-like vehicle panel. Since both vibration response and
acoustic levels near the panel were available from the ground test,
the evaluation provided an opportunity to learn how well the
different modeling options can match band-averaged spectra
developed from the test data. Additional work was performed to
understand the spatial averaging of the measurements across the
panel from measured data. Finally an evaluation/comparison of two
conversion approaches from the statistical average response results
that are output from an SEA analysis to a more useful envelope of
response spectra appropriate to specify design and test vibration
levels for a new vehicle.
General
Imprint: |
Bibliogov
|
Country of origin: |
United States |
Release date: |
June 2013 |
First published: |
June 2013 |
Authors: |
Phil Harrison
|
Dimensions: |
246 x 189 x 2mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
34 |
ISBN-13: |
978-1-289-04909-6 |
Categories: |
Books >
Social sciences >
Politics & government >
General
|
LSN: |
1-289-04909-2 |
Barcode: |
9781289049096 |
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