A new way to calculate for chain lengths with maximal dynamic forces at electric chain hoists

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This paper provides a simple and validated method to calculate for
resonant chain lengths analytically, which are leading to resonance
phenomena at single-fall chain hoists. So called polygon-effect-induced
oscillations cause additional dynamic loads at about 40%. They lead to
unsafe oparational conditions and reduce chain and chain hoists lifetime
dramatically. For the calculation stiffnesses and oscillating masses of
mounting devices (crane beams) and liftin
g gears are considered as well
as the dominating parameters chain stiffness and lifting mass. By
measurement validated simulation results of various chain hoist
configurations are regressed in a sizing calculation scheme that is solvable
by the simple use of a pocket calcul
ator or a convenient calculation
program. Furthermore a PC-Software-Tool is introduced to analyze this
problem comfortably.
Original languageEnglish
Title of host publicationProceedings of the XIX International Triennial Conference on Material Handling, Constructions and Logistics MHCL'09
Place of PublicationBelgrad
ISBN (Print)978-86-7083-672-3
Publication statusPublished - 2009
EventInternational Conference on Material Handling, Constructions and Logistics - Belgrad, Serbia
Duration: 15 Oct 200916 Oct 2009


ConferenceInternational Conference on Material Handling, Constructions and Logistics


  • Chain Hoist
  • polygon effect
  • round link chain

Treatment code (Nähere Zuordnung)

  • Theoretical

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