Linear algorithm to identify the nonlinear structural system equations

Tadanobu Sato; Masashi Kikukawa

doi:10.1117/12.316296

24 July 1998 Linear algorithm to identify the nonlinear structural system equations

Tadanobu Sato, Masashi Kikukawa

Proceedings Volume 3323, Smart Structures and Materials 1998: Mathematics and Control in Smart Structures; (1998) https://doi.org/10.1117/12.316296
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

To identify dynamic parameters of structural systems, we have to solve non-linear optimization problems because the system transfer equation of a structural system is usually a non-linear function of the system's parameters. The purpose of this paper is to develop a method to linearize an observation equation with respect to structural parameters, which is derived from the system transferequation, and used it to identify the dynamic parameters of linear and non- linear dynamic structural systems. The numerical examples were satisfactory for identifying the dynamic parameters of model structures with eight degrees of freedom.

Citation Download Citation

Tadanobu Sato and Masashi Kikukawa "Linear algorithm to identify the nonlinear structural system equations", Proc. SPIE 3323, Smart Structures and Materials 1998: Mathematics and Control in Smart Structures, (24 July 1998); https://doi.org/10.1117/12.316296

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