Comparison of the Aluminium Versus Steel Telecommunication Towers in Stochastic Finite Element Method Eigenvibrations Analysis
Ładowanie...
Data
2011
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki Łódzkiej
Lodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering
Lodz University of Technology Press ; Department Division of Dynamics - Faculty of Mechanical Engineering
Abstrakt
The main aim of this paper is to make a comparison of the eigenfrequencies of the high
telecommunication towers alternatively manufactured using the stainless steel and the
aluminium components. It is provided each time assuming that the Young modulus
of the applied material· is the Gaussian input random variable and using the generalized
stochastic perturbation method using the global version of the Response Function
Method. Up to the fourth order probabilistic moments and characteristics are computed
in the three dimensional Finite Element Method model of the tower composed from the
continuous linear elastic edge beams spanned by the large number of the linear elastic
bars. A computational part of the work is made using the hybrid usage of the computer
algebra system MAPLE and the FEM engineering package ROBOT used widely in the
civil engineering practice.
Opis
Słowa kluczowe
stochastic dynamics, stochastic finite element method, response function method, stochastic perturbation technique, dynamika stochastyczna, metoda stochastycznych elementów skończonych, metoda funkcji odpowiedzi, technika zaburzeń stochastycznych
Cytowanie
Mechanics and Mechanical Engineering, Vol. 15, No. 2, 2011, s. 101-116