Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams

The paper presents an analytical method of finding functions of influence lines of statically indeterminate beams. There are presented solutions of a fourth order equation with a right hand side with second and third derivative of Dirac delta. There is shown that their solution are influence lines o...

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Main Author: Walentyński Ryszard
Format: Article
Language:English
Published: VŠB-Technical University of Ostrava, Faculty of Civil Engineering 2015-12-01
Series:Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series
Subjects:
Online Access:http://www.degruyter.com/view/j/tvsb.2015.15.issue-2/tvsb-2015-0025/tvsb-2015-0025.xml?format=INT
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author Walentyński Ryszard
author_facet Walentyński Ryszard
author_sort Walentyński Ryszard
collection DOAJ
description The paper presents an analytical method of finding functions of influence lines of statically indeterminate beams. There are presented solutions of a fourth order equation with a right hand side with second and third derivative of Dirac delta. There is shown that their solution are influence lines of moments and transverse forces. Moreover, thanks to Mathematica, analytical form of envelopes functions can be evaluated.
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spelling doaj.art-dfcd90b0dbfc4bbbb41ce792166458772023-05-29T13:15:28ZengVŠB-Technical University of Ostrava, Faculty of Civil EngineeringTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series1804-48242015-12-0115210.1515/tvsb-2015-0025tvsb-2015-0025Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate BeamsWalentyński Ryszard0 Prof. (assoc.) Ryszard Walentyński M.Sc. C.Eng. Ph.D. D.Sc., Chair of Building Structures Theory, Faculty of Civil Engineering, Silesian University of Technology, ul. Akademicka 5, 44-100 Gliwice, Poland, phone: (+48) 32 237 21 18The paper presents an analytical method of finding functions of influence lines of statically indeterminate beams. There are presented solutions of a fourth order equation with a right hand side with second and third derivative of Dirac delta. There is shown that their solution are influence lines of moments and transverse forces. Moreover, thanks to Mathematica, analytical form of envelopes functions can be evaluated.http://www.degruyter.com/view/j/tvsb.2015.15.issue-2/tvsb-2015-0025/tvsb-2015-0025.xml?format=INTInfluence linesfundamental solutiongeneralized functionsDirac deltaHeaviside step functionstructural mechanicsdifferential equationsenvelopesMathematica
spellingShingle Walentyński Ryszard
Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams
Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series
Influence lines
fundamental solution
generalized functions
Dirac delta
Heaviside step function
structural mechanics
differential equations
envelopes
Mathematica
title Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams
title_full Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams
title_fullStr Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams
title_full_unstemmed Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams
title_short Generalized Functions And Calculus Operators Of Mathematica Applied To Evaluation Of Influence Lines And Envelopes Of Statically Indeterminate Beams
title_sort generalized functions and calculus operators of mathematica applied to evaluation of influence lines and envelopes of statically indeterminate beams
topic Influence lines
fundamental solution
generalized functions
Dirac delta
Heaviside step function
structural mechanics
differential equations
envelopes
Mathematica
url http://www.degruyter.com/view/j/tvsb.2015.15.issue-2/tvsb-2015-0025/tvsb-2015-0025.xml?format=INT
work_keys_str_mv AT walentynskiryszard generalizedfunctionsandcalculusoperatorsofmathematicaappliedtoevaluationofinfluencelinesandenvelopesofstaticallyindeterminatebeams