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Static shape control for flexible structuresAn integrated methodology is described for defining static shape control laws for large flexible structures. The techniques include modeling, identifying and estimating the control laws of distributed systems characterized in terms of infinite dimensional state and parameter spaces. The models are expressed as interconnected elliptic partial differential equations governing a range of static loads, with the capability of analyzing electromagnetic fields around antenna systems. A second-order analysis is carried out for statistical errors, and model parameters are determined by maximizing an appropriate defined likelihood functional which adjusts the model to observational data. The parameter estimates are derived from the conditional mean of the observational data, resulting in a least squares superposition of shape functions obtained from the structural model.
Document ID
19870045384
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rodriguez, G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Scheid, R. E., Jr.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1986
Subject Category
Cybernetics
Report/Patent Number
SAE PAPER 861822
Accession Number
87A32658
Distribution Limits
Public
Copyright
Other

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