Results 11 to 20 of about 126,361 (258)

Suppression of transverse vibration of elevator rope using vertical vibration of counterweight

open access: yesNihon Kikai Gakkai ronbunshu, 2015
An elevator rope for high-rise building is forcibly excited by the displacement of the building caused by earthquakes and wind forces. In high-rise building, the elevator rope may resonate with the natural frequency of the building; hence, effective ...
Ibuki HIROSE, Hiroyuki KIMURA, Kou OGAWA
doaj   +3 more sources

113 Operation for the apparatus breakage prevention by the rope sway of a high rise-and-fall distance elevator

open access: yesThe Proceedings of the Elevator Escalator and Amusement Rides Conference, 2014
Junichiro Koizumi   +2 more
semanticscholar   +3 more sources

Nonlinear Dynamic Modelling and Analysis of a 3-D Overhead Gantry Crane System with System Parameters Variation [PDF]

open access: yes, 2010
Overhead cranes are widely used in industry for transportation of heavy loads. The natural sway of crane payloads is detrimental to safe and efficient operation. However, the crane acceleration, required for motion, always induces undesirable load swing.
Fairuz Rizal, Mohamad Rashidi   +3 more
core   +2 more sources

The Speed Control of Constant Tension Motor of Marine Crane

open access: yesMATEC Web of Conferences, 2016
This article describes the working principle of the marine beacon crane hanging disc mechanical anti-sway device, and establish mathematical model on the rope controlling hanging disc of mechanical anti-sway device; Through matlab simulation analysis ...
Chen Xinyang   +4 more
doaj   +1 more source

Suppression of transverse vibration of elevator rope using dynamic damper

open access: yesNihon Kikai Gakkai ronbunshu, 2015
An elevator rope for a high-rise building is forcibly excited by the displacements of the building induced by wind forces and/or by long-period ground motion.
Hiroyuki KIMURA, Kohei BANSHO
doaj   +1 more source

Upgrading for overhead crane anti-sway method using variable frequency drive

open access: yesBulletin of Electrical Engineering and Informatics, 2022
The paper discusses about upgrading the overhead crane anti-sway method base on the induction motor torque control from rotor resistance starter to variable frequency drives (VFDs). The upgrading included two phases.
M. Omar   +3 more
semanticscholar   +1 more source

The Swedish Perception of European Security in the Light of the Crisis in Ukraine [PDF]

open access: yes, 2016
The events in Ukraine, the annexation of Crimea, and the Russian attitude towards Ukraine show an evident change in European relations. The escalation of conflict between Russia and Ukraine however does not affect only those two countries, but also those
Kobierecka, Anna
core   +3 more sources

Design and Experimental Research of the Anti-sway Test Bed for Offshore Crane

open access: yesMATEC Web of Conferences, 2015
Offshore cranes are commonly used in cargo handling, offshore installation and replenishment at sea. However, because of the wave motion of the ship and the flexibility of the rope, the sway of payload is unavoidable and may put relevant operations in ...
Wang Shenghai   +3 more
doaj   +1 more source

Free vibration analysis of a string with vibration suppressors located at 1/N from both ends of the string (When N is an odd number and gap between string and vibration suppressor is not zero)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
In high-rise buildings, the elevator rope may resonate with the building's sway induced by wind forces and/or by long period ground motion. Therefore, suppression of elevator rope vibration is desired.
Takahiro FUJITANI, Hiroyuki KIMURA
doaj   +1 more source

Investigation of influence from inertia of hoisting rope on mobile crane using flexible multibody model

open access: yesNihon Kikai Gakkai ronbunshu, 2018
This research studied an influence of the inertia of the hoisting rope on the dynamics of a mobile crane system. Two dynamics models of the mobile crane were formulated with the inertia included rope model and the massless rope model, and their dynamics ...
Kolawach CHALERMPONG   +2 more
doaj   +1 more source

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