Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators

The dimensioning of general-purpose machines such as manipulators involves the solution of a number of preliminary issues. The determination of reference external loads and the identification of machine configurations that give the maximum internal load for each component are two of these issues. Th...

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Main Authors: Raffaele Di Gregorio, Erkan Yilmaz
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/9/2/27
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author Raffaele Di Gregorio
Erkan Yilmaz
author_facet Raffaele Di Gregorio
Erkan Yilmaz
author_sort Raffaele Di Gregorio
collection DOAJ
description The dimensioning of general-purpose machines such as manipulators involves the solution of a number of preliminary issues. The determination of reference external loads and the identification of machine configurations that give the maximum internal load for each component are two of these issues. These two problems are commonly addressed through trial-and-error procedures based on dynamic modelling, which are implemented with the support of simulation software, since static analyses are commonly considered inadequate to solve them. Despite this, here, a technique based on influence coefficients and static analyses is presented which solves them. Such technique is also able to foresee and justify dynamic issues (i.e., possible vibrations, etc.) that could heavily affect the machine behavior. The effectiveness of the proposed technique is proved by implementing it on a 3T1R parallel manipulator. The presented design method is general and applicable to any type of non-overconstrained manipulator or mechanism.
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spelling doaj.art-1c1ba953d5264476b7965bd2de9465942023-12-03T12:02:24ZengMDPI AGMachines2075-17022021-02-01922710.3390/machines9020027Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in ManipulatorsRaffaele Di Gregorio0Erkan Yilmaz1LaMaViP, Department of Engineering, University of Ferrara, 44122 Ferrara, ItalyLaMaViP, Department of Engineering, University of Ferrara, 44122 Ferrara, ItalyThe dimensioning of general-purpose machines such as manipulators involves the solution of a number of preliminary issues. The determination of reference external loads and the identification of machine configurations that give the maximum internal load for each component are two of these issues. These two problems are commonly addressed through trial-and-error procedures based on dynamic modelling, which are implemented with the support of simulation software, since static analyses are commonly considered inadequate to solve them. Despite this, here, a technique based on influence coefficients and static analyses is presented which solves them. Such technique is also able to foresee and justify dynamic issues (i.e., possible vibrations, etc.) that could heavily affect the machine behavior. The effectiveness of the proposed technique is proved by implementing it on a 3T1R parallel manipulator. The presented design method is general and applicable to any type of non-overconstrained manipulator or mechanism.https://www.mdpi.com/2075-1702/9/2/27parallel manipulatorsdimensional synthesiskinetostaticsinfluence coefficients
spellingShingle Raffaele Di Gregorio
Erkan Yilmaz
Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators
Machines
parallel manipulators
dimensional synthesis
kinetostatics
influence coefficients
title Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators
title_full Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators
title_fullStr Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators
title_full_unstemmed Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators
title_short Influence-Coefficient Method for Identifying Maximum-Load Configurations and Variable-Load Issues in Manipulators
title_sort influence coefficient method for identifying maximum load configurations and variable load issues in manipulators
topic parallel manipulators
dimensional synthesis
kinetostatics
influence coefficients
url https://www.mdpi.com/2075-1702/9/2/27
work_keys_str_mv AT raffaeledigregorio influencecoefficientmethodforidentifyingmaximumloadconfigurationsandvariableloadissuesinmanipulators
AT erkanyilmaz influencecoefficientmethodforidentifyingmaximumloadconfigurationsandvariableloadissuesinmanipulators