Property identification of viscoelastic solid materials in nomograms using optimization techniques

• Autorzy: de Sousa T. L. , Kanke F. , Pereira J. T. , Bavastri C. A.

Identyfikatory

DOI

10.15632/jtam-pl.55.4.1285

• Języki publikacji: EN

Abstrakty

EN

Viscoelastic materials have been widely used as devices for vibration control in general. Frequently, dynamic properties of those materials are provided by manufacturers only in a graph form in the frequency domain. This is a recurring problem in industry and academia. Thereby, the goal of this work is to contribute to this important issue which is to obtain the properties of viscoelastic materials from nomograms supplied by the manufacturer. The methodology is based on the digitalization of the nomogram of the material and on the subsequent reading of a set of points from two curves in different temperatures. An optimization problem with simple restrictions is built having characteristic constants of the constitutive models as design variables. The problem is solved by applying a hybrid optimization technique. The results obtained are presented, and prove to be very promising.

Słowa kluczowe

EN

identification; optimization; viscoelastic materials; Zener fractional model; Wiechert model

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 4
• Strony: 1285--1297
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

de Sousa T. L.

• Parana Federal University, Postgraduate Program in Mechanical Engineering, Curitiba, Brazil

autor

Kanke F.

• Parana Federal University, Postgraduate Program in Mechanical Engineering, Curitiba, Brazil

autor

Pereira J. T.

• Parana Federal University, Postgraduate Program in Mechanical Engineering, Curitiba, Brazil

autor

Bavastri C. A.

• Parana Federal University, Postgraduate Program in Mechanical Engineering, Curitiba, Brazil

Bibliografia

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