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Program Determines Minimum-State Approximations To Unsteady Aerodynamic ForcesMIST implements minimum-state method for determining rational approximations of matrix of aerodynamic force coefficients. Accepts complex tabular data representing generalized unsteady aerodynamic forces over set of reduced frequencies. Determines approximations to tabular data in Laplace domain by use of rational functions. Provides capability to select coefficients of denominator in rational approximations, to constrain approximation selectably without increasing size of problem, and determines and emphasizes criticial frequency ranges in determining approximations. Written in ANSI FORTRAN 77.
Document ID
19930000397
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Karpel, Mordechay
(National Research Council)
Hoadley, Sherwood T.
(NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 7
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-14893
Accession Number
93B10397
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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