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Automation of vibroacoustic data bank for random vibration criteria developmentA computerized data bank system was developed for utilization of large amounts of vibration and acoustic data to formulate component random vibration design and test criteria. This system consists of a computer, graphics tablet, and a dry-silver hard copier which are all desk-top type hardware and occupy minimal space. The data bank contains data from the Saturn V and Titan III flight and static test programs. The vibration and acoustic data are stored in the form of power spectral density and one-third octave band plots over the frequency range from 20 to 2000 Hz. The data was stored by digitizing each spectral plot by tracing with the graphics tablet. The digitized data was statistically analyzed and the resulting 97.5% probability levels were stored on tape along with the appropriate structural parameters. Standard extrapolation procedures were programmed for prediction of component random vibration test criteria for new launch vehicle and payload configurations. This automated vibroacoustic data bank system greatly enhances the speed and accuracy of formulating vibration test criteria. In the future, the data bank will be expanded to include all data acquired from the space shuttle flight test program.
Document ID
19830022428
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ferebee, R. C.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 11, 2013
Publication Date
May 1, 1982
Publication Information
Publication: Shock and Vibration Inform. Center The Shock and Vibration Bull., No. 52. Part 2
Subject Category
Documentation And Information Science
Accession Number
83N30699
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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