Applicability of fuzzy logic to the definition of the buckling length of steel plane frames
This paper presents a fuzzy-logic-based approach to the definition of buckling length evoked by the uncertainty of joint stiffness and boundary conditions for the member support. The example demonstrates a lucid and specific application of fuzzy sets in modelling uncertainties in design. To carry...
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Vilnius Gediminas Technical University
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doaj-0cdac7e073eb46e088d5919bc387c5732021-07-02T01:29:56ZengVilnius Gediminas Technical UniversityEngineering Structures and Technologies2029-882X2029-88382009-10-011310.3846/skt.2009.16Applicability of fuzzy logic to the definition of the buckling length of steel plane framesZdeněk Kala0Abayomi Omishore1Libor Puklický2Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří Str. 95, 602 00 Brno, Czech RepublicBrno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří Str. 95, 602 00 Brno, Czech RepublicBrno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří Str. 95, 602 00 Brno, Czech Republic This paper presents a fuzzy-logic-based approach to the definition of buckling length evoked by the uncertainty of joint stiffness and boundary conditions for the member support. The example demonstrates a lucid and specific application of fuzzy sets in modelling uncertainties in design. To carry out analysis, the extension principle in the form of α-cuts was used. Buckling lengths were analysed utilizing stability solution according to the second-order theory. The beam finite element method with the shape functions of sin and sinh was utilized in the analysis taking into account valuable information on the uncertainties of input data. Formaliosios logikos analizės pritaikymas plokščių rėmų skaičiuojamųjų ilgių nustatymui Santrauka Straipsnis pateikia siūlomą skaičiuojamojo ilgio nustatymo metodą, grįstą formaliąja logika, sukeltą esant nepastoviam jungčių standumui ir elemento atramų ribinėms sąlygoms. Pateiktas pavyzdys demonstruoja aiškų ir specifinį formaliosios aibės pritaikomumą modeliuojant nepastovumą projektavimo metu. Skaičiuojamasis ilgis buvo analizuojamas panaudojant stabilumo sprendinius taikant antros eilės teoriją. Sijos baigtinių elementų metodas su sinuso ir hiperbolinio sinuso formos funkcijomis buvo pritaikytas analizėje. Ivedamų duomenų nepastovumas taip pat buvo įvertintas analizėje. First Published Online: 16 May 2013 Reikšminiai žodžiai: plienas, betonas, konstrukcija, projektavimas, patikimumas, atsitiktinis, formalioji logika, trūkumas https://www.bme.vgtu.lt/index.php/EST/article/view/7543steelconcretestructuredesignreliabilityrandom |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zdeněk Kala Abayomi Omishore Libor Puklický |
spellingShingle |
Zdeněk Kala Abayomi Omishore Libor Puklický Applicability of fuzzy logic to the definition of the buckling length of steel plane frames Engineering Structures and Technologies steel concrete structure design reliability random |
author_facet |
Zdeněk Kala Abayomi Omishore Libor Puklický |
author_sort |
Zdeněk Kala |
title |
Applicability of fuzzy logic to the definition of the buckling length of steel plane frames |
title_short |
Applicability of fuzzy logic to the definition of the buckling length of steel plane frames |
title_full |
Applicability of fuzzy logic to the definition of the buckling length of steel plane frames |
title_fullStr |
Applicability of fuzzy logic to the definition of the buckling length of steel plane frames |
title_full_unstemmed |
Applicability of fuzzy logic to the definition of the buckling length of steel plane frames |
title_sort |
applicability of fuzzy logic to the definition of the buckling length of steel plane frames |
publisher |
Vilnius Gediminas Technical University |
series |
Engineering Structures and Technologies |
issn |
2029-882X 2029-8838 |
publishDate |
2009-10-01 |
description |
This paper presents a fuzzy-logic-based approach to the definition of buckling length evoked by the uncertainty of joint stiffness and boundary conditions for the member support. The example demonstrates a lucid and specific application of fuzzy sets in modelling uncertainties in design. To carry out analysis, the extension principle in the form of α-cuts was used. Buckling lengths were analysed utilizing stability solution according to the second-order theory. The beam finite element method with the shape functions of sin and sinh was utilized in the analysis taking into account valuable information on the uncertainties of input data.
Formaliosios logikos analizės pritaikymas plokščių rėmų skaičiuojamųjų ilgių nustatymui
Santrauka
Straipsnis pateikia siūlomą skaičiuojamojo ilgio nustatymo metodą, grįstą formaliąja logika, sukeltą esant nepastoviam jungčių standumui ir elemento atramų ribinėms sąlygoms. Pateiktas pavyzdys demonstruoja aiškų ir specifinį formaliosios aibės pritaikomumą modeliuojant nepastovumą projektavimo metu. Skaičiuojamasis ilgis buvo analizuojamas panaudojant stabilumo sprendinius taikant antros eilės teoriją. Sijos baigtinių elementų metodas su sinuso ir hiperbolinio sinuso formos funkcijomis buvo pritaikytas analizėje. Ivedamų duomenų nepastovumas taip pat buvo įvertintas analizėje.
First Published Online: 16 May 2013
Reikšminiai žodžiai: plienas, betonas, konstrukcija, projektavimas, patikimumas, atsitiktinis, formalioji logika, trūkumas
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topic |
steel concrete structure design reliability random |
url |
https://www.bme.vgtu.lt/index.php/EST/article/view/7543 |
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