Cable-direct-driven robots(CDDRs)providedwithapassiveserialsupportrepresentaninterestingand rising evolutionofplanarcablerobots.ThepaperisdevotedtopresentandanalyzeanovelCDDRrobot. The robotconsistsinafullyactuatedCDDRsupportedagainstloadingnormaltothemotionplanewitha 3-link passiveplanarserialmanipulator.Thishybridstructurecombinespositivefeaturesofbothparallel and serialarchitectures,andpreventsout-of-planemovementswithoutthenecessityfortherobottobe supported onthemotionplane.Theadoptionofa3-linkserialmanipulatorensuresagreaterworkspace area comparedwithsimilarstructuresthatadoptasmallernumberoflinks,andimprovesspecific characteristicsoftheirdynamics.Neverthelessundesiredoscillationsmayoccursincetheserial manipulator isunderconstrained.Forthisreasondampingelementsareinsertedinthestructure. Simulation examplesarepresentedtodemonstratethenovelCDDRconceptanditsdynamics.In addition, astrategytoselectpropervaluesofdampingcoefficients ispresented.
Cable-direct-driven-robot (CDDR) with a 3-link passive serial support
GALLINA, PAOLO
2014-01-01
Abstract
Cable-direct-driven robots(CDDRs)providedwithapassiveserialsupportrepresentaninterestingand rising evolutionofplanarcablerobots.ThepaperisdevotedtopresentandanalyzeanovelCDDRrobot. The robotconsistsinafullyactuatedCDDRsupportedagainstloadingnormaltothemotionplanewitha 3-link passiveplanarserialmanipulator.Thishybridstructurecombinespositivefeaturesofbothparallel and serialarchitectures,andpreventsout-of-planemovementswithoutthenecessityfortherobottobe supported onthemotionplane.Theadoptionofa3-linkserialmanipulatorensuresagreaterworkspace area comparedwithsimilarstructuresthatadoptasmallernumberoflinks,andimprovesspecific characteristicsoftheirdynamics.Neverthelessundesiredoscillationsmayoccursincetheserial manipulator isunderconstrained.Forthisreasondampingelementsareinsertedinthestructure. Simulation examplesarepresentedtodemonstratethenovelCDDRconceptanditsdynamics.In addition, astrategytoselectpropervaluesofdampingcoefficients ispresented.Pubblicazioni consigliate
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