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Multiple boundary condition testing error analysisTechniques for interpreting data from multiple-boundary-condition (MBC) ground tests of large space structures are developed analytically and demonstrated. The use of MBC testing to validate structures too large to stand alone on the ground is explained; the generalized least-squares mass and stiffness curve-fitting methods typically applied to MBC test data are reviewed; and a detailed error analysis is performed. Consideration is given to sensitivity coefficients, covariance-matrix theory, the correspondence between test and analysis modes, constraints and step sizes, convergence criteria, and factor-analysis theory. Numerical results for a simple beam problem are presented in tables and briefly characterized. The improved error-updating capabilities of MBC testing are confirmed, and it is concluded that reasonably accurate results can be obtained using a diagonal covariance matrix.
Document ID
19890043282
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Glaser, R. J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kuo, C. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wada, B. K.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 89-1162
Meeting Information
Meeting: AIAA, ASME, ASCE, AHS, and ASC, Structures, Structural Dynamics and Materials Conference
Location: Mobile, AL
Country: United States
Start Date: April 3, 1989
End Date: April 5, 1989
Accession Number
89A30653
Distribution Limits
Public
Copyright
Other

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