Detail publikace

Fuzzy-Random Analysis of Steel Structures

KALA, Z.

Originální název

Fuzzy-Random Analysis of Steel Structures

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The uncertainty of stochastic computations for which input random quantities are introduced in the subjective manner is presented in this paper. To obtain a correct stochastic computation, it is necessary to have exclusively objective statistical information based on experiments including the correlation matrix at the disposal. If this information is not available, the vague (fuzzy) uncertainty is to be quantified by applying the so-called fuzzy analysis. In the present paper, these problems are demonstrated on the example of an analysis of fuzzy uncertainty of probability assessment of the reliability of a steel member under compression. The output is a fuzzy set of failure probability. The single crisp control output of failure probability was obtained with use of the defuzzification centre of gravity method. The value obtained was by 200 percent higher than that obtained by the classical stochastic computation. In conclusion, the applicability possibilities of the complex fuzzy-random uncertainty analysis at the probability assessment of the reliability of structures by the SBRA method.

Klíčová slova

steel, failure, probability, correlation, fuzzy, simulation

Autoři

KALA, Z.

Rok RIV

2007

Vydáno

25. 2. 2007

Místo

Brno

ISSN

1802-1484

Periodikum

Engineering Mechanics

Ročník

14

Číslo

1

Stát

Česká republika

Strany od

199

Strany do

210

Strany počet

12

BibTex

@article{BUT44106,
  author="Zdeněk {Kala}",
  title="Fuzzy-Random Analysis of Steel Structures",
  journal="Engineering Mechanics",
  year="2007",
  volume="14",
  number="1",
  pages="199--210",
  issn="1802-1484"
}