Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs

Cross vibrations in cylindrical thin – border tubes and in rectangular frames which are made from these tubes and calculating method of their frequency are analyzed in the article. The theory of instantaneous cylindrical tubes and main equations of theory of elasticity can be used to develop the ma...

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Main Authors: Algimantas Bartaševičius, Petras Ilgakojis, Stanislovas Merkevičius
Format: Article
Language:English
Published: Vilnius University Press 2004-12-01
Series:Lietuvos Matematikos Rinkinys
Subjects:
Online Access:https://www.journals.vu.lt/LMR/article/view/31742
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author Algimantas Bartaševičius
Petras Ilgakojis
Stanislovas Merkevičius
author_facet Algimantas Bartaševičius
Petras Ilgakojis
Stanislovas Merkevičius
author_sort Algimantas Bartaševičius
collection DOAJ
description Cross vibrations in cylindrical thin – border tubes and in rectangular frames which are made from these tubes and calculating method of their frequency are analyzed in the article. The theory of instantaneous cylindrical tubes and main equations of theory of elasticity can be used to develop the mathematical model. Vibrations of one and two layers thin – border tubes are considered, differential equations with partial derivatives are created to discribe vibrations. Determination of approximate solution method of differential equations are simple and practical which can be used to calculate self vibration frequencies. Digital values of self vibration frequencies in one and two layers thin – border tubes and in rectangular frames which are made from these tubes are compared.
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spelling doaj.art-5da906f25e6a49c89a4acb04219650692024-04-23T09:02:49ZengVilnius University PressLietuvos Matematikos Rinkinys0132-28182335-898X2004-12-0144spec.10.15388/LMR.2004.31742Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigsAlgimantas Bartaševičius0Petras Ilgakojis1Stanislovas Merkevičius2Lithuanian University of AgricultureLithuanian University of AgricultureLithuanian University of Agriculture Cross vibrations in cylindrical thin – border tubes and in rectangular frames which are made from these tubes and calculating method of their frequency are analyzed in the article. The theory of instantaneous cylindrical tubes and main equations of theory of elasticity can be used to develop the mathematical model. Vibrations of one and two layers thin – border tubes are considered, differential equations with partial derivatives are created to discribe vibrations. Determination of approximate solution method of differential equations are simple and practical which can be used to calculate self vibration frequencies. Digital values of self vibration frequencies in one and two layers thin – border tubes and in rectangular frames which are made from these tubes are compared. https://www.journals.vu.lt/LMR/article/view/31742cylindrical tubeselasticitymovementdifferential equationsself vibration frequencies
spellingShingle Algimantas Bartaševičius
Petras Ilgakojis
Stanislovas Merkevičius
Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
Lietuvos Matematikos Rinkinys
cylindrical tubes
elasticity
movement
differential equations
self vibration frequencies
title Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
title_full Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
title_fullStr Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
title_full_unstemmed Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
title_short Mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
title_sort mathematical modeling of the self vibration frequencies of mechanical frames of controls rigs
topic cylindrical tubes
elasticity
movement
differential equations
self vibration frequencies
url https://www.journals.vu.lt/LMR/article/view/31742
work_keys_str_mv AT algimantasbartasevicius mathematicalmodelingoftheselfvibrationfrequenciesofmechanicalframesofcontrolsrigs
AT petrasilgakojis mathematicalmodelingoftheselfvibrationfrequenciesofmechanicalframesofcontrolsrigs
AT stanislovasmerkevicius mathematicalmodelingoftheselfvibrationfrequenciesofmechanicalframesofcontrolsrigs