DYNAMIC BEHAVIOR OF THE SYSTEM “PRINCIPAL BEAM – TELPHER – LOAD” DUE TO TELPHER MOTION

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  • TITLE: DYNAMIC BEHAVIOR OF THE SYSTEM “PRINCIPAL BEAM – TELPHER – LOAD” DUE TO TELPHER MOTION
  • AUTHOR(S): V. P. Dunchev, J.T. Maximov
  • ABSTRACT: This article presents the results from an analytical study of the dynamic behaviour of the metal structure of a bridge crane due to the movement of the electric hoist. The modeled system includes: the principal beam of the crane; moving with a constant horizontal velocity hoist; elastically fixed to the hoist load. The forced vibrations with its own frequency and with forced frequency, due to the movement of the hoist, have been analyzed. A concept of "dynamic coefficient" has been introduced, which is a ratio of the dynamic deflection of the principal beam to the static one. This ratio has been compared with the known from the literature empirical coefficient of dynami sm during the hoist movement, due to unevenness the track.
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