Application of Evolutionary Algorithms to the Identification of Parameters of New Smart Structures : Preliminary Approach

• Autorzy: Pyrz M. , Zalewski R.
• Konferencja: French-Polish Seminar on Mechanics ; 14. ; International Conference on Modelling and Simulation of the Friction Phenomena in the Physical and Technical Systems "FRICTION 2006" ; 4. (5.06.2006 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

A new "smart structure", based on granular materials encapsulated in an elastic envelope, is proposed and investigated in the paper. Fundamental mechanical properties of the specially prepared granular testing specimens are described by the viscoplastic constitutive Chaboche's model. The experimental results of uniaxial tests are presented and applied to the identification of parameters of the Chaboche's law. The proposed procedure of material parameters estimation is based on evolutionary algorithms, solving corresponding optimization problem. The efficiency of the approach and the quality of the results are discussed.

Słowa kluczowe

EN

smart structures; granular materials; elastic deformations; encapsulation; Chaboche model; evolutionary algorithm

PL

materiałoznawstwo; materiały granulowane; odkształcenie plastyczne; enkapsulacja; model Chabochea; algorytm ewolucyjny

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2006
• Tom: Vol. 30, No. 2
• Strony: 136--145
• Opis fizyczny: Bibliogr. 10 poz., wykr.

Twórcy

autor

Pyrz M.

autor

Zalewski R.

• University of Science and Technology of Lille, Lille Mechanics Laboratory

Bibliografia

• Bäck, T., 1995, Evolutionary Algorithms in theory and practice, Oxford Univ. Press, New York.
• Bajkowski, J., Zalewski, R., 2005, Wyznaczanie parametrów funkcji wzmocnienia izotropowego prawa Chaboche'a dla struktur granulowanych w specjalnych warunkach w próbie jednoosiowego ściskania, XXII Sympozjon Podstaw Konstrukcji Maszyn, Tom 2, Gdynia-Jurata, 57-63.
• Bajkowski, J., Zalewski, R., 2006, Chosen problems connected with modeling of thermic problems in dissipation and absorption of energy in the magnetorheological damper, Proceeding of the XIV Ukrainian-Polish Conference on "CAD in Machinery Design", Polyana, Ukraine, 10-16.
• Bajkowski, J., Zalewski, R., 2006, Influence of grain's material on the isotropic hardening function coefficients in compression tests, Proceedings of the XI International Conference Computer Simulation in Machine Design - COSIM 2006, Krynica Zdrój, 9-17.
• Goldberg, D. E., 1989, Genetic Algorithms in Search, Optimization and Machine Learning, Addison Wesley Reading.
• Landjerit, B., Woźnica, K., Zalewski, R., 2002, Identyfikacja parametrów równania Chaboche'a dla materiałów granulowanych znajdujących się w przestrzeni z podciśnieniem, X French-Polish Seminar of Mechanics, Warsaw, 156-163.
• Lemaitre, J., Chaboche, J. L., 1990, Mechanics of Solid Materials, Cambridge University Press, Cambridge.
• Michalewicz, Z., 1992, Genetic algorithms + data structures = evolution programs, Springer Verlag, Berlin, Heidelberg, New York.
• Pyrz, M., Woźnica, K., 2004, Identification of steel viscoplastic parameters by evolutionary algorithms, XII French-Polish Seminar of Mechanics, Warsaw, 43-50.
• Pyrz, M., Woźnica, K., Iwanow, Z., 2002, Identification of constitutive viscoplastic law parameters by evolutionary approach, EUROMECH 437 (Identification and Updating Methods in Mechanical Structures), Book of Abstracts, Prague, Czech Republic, p. 45.