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...

Full description

Bibliographic Details
Main Authors: Zdeněk Kala, Abayomi Omishore, Libor Puklický
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2009-10-01
Series:Engineering Structures and Technologies
Subjects:
Online Access:https://www.bme.vgtu.lt/index.php/EST/article/view/7543
id doaj-0cdac7e073eb46e088d5919bc387c573
record_format Article
spelling 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
topic steel
concrete
structure
design
reliability
random
url https://www.bme.vgtu.lt/index.php/EST/article/view/7543
work_keys_str_mv AT zdenekkala applicabilityoffuzzylogictothedefinitionofthebucklinglengthofsteelplaneframes
AT abayomiomishore applicabilityoffuzzylogictothedefinitionofthebucklinglengthofsteelplaneframes
AT liborpuklicky applicabilityoffuzzylogictothedefinitionofthebucklinglengthofsteelplaneframes
_version_ 1721344820503379968