Improved method of fitting Prony series to data on viscoelastic materials involves use of least-squares optimization techniques. Based on optimization techniques yields closer correlation with data than traditional method. Involves no assumptions regarding the gamma'(sub i)s and higher-order terms, and provides for as many Prony terms as needed to represent higher-order subtleties in data. Curve-fitting problem treated as design-optimization problem and solved by use of partially-constrained-optimization techniques.
Fitting Prony Series To Data On Viscoelastic Materials
NASA Tech Briefs ; 19 , 12
1995-12-01
Miscellaneous
No indication
English
Fitting Prony Series to Data on Viscoelastic Materials
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