Results 11 to 20 of about 26,961 (241)

Use of balancing rope for damping of cargo sways moved by a loading crane [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
It has been proposed to add a load-lifting crane with a flexible cable suspension of cargo with an additional side balancing cable. The latter is located predominantly horizontally.
Korytov M.S.   +2 more
doaj   +2 more sources

Horizontal Vibration of the Coupled Rope–Car–Rail System in High-Speed Elevators Under Building Sway Excitation

open access: yesBuildings
Horizontal vibrations in high-speed elevators induced by building sway degrade ride comfort and compromise operational safety. Developing an accurate and robust dynamic model is essential for effective vibration control.
Wen Wang   +3 more
doaj   +2 more sources

Inclined Rope Reeving Systems [PDF]

open access: yesE3S Web of Conferences, 2021
Main part of crane systems in general and hoisting systems especially are rope-reeving systems. They are used to reduce the loading on the rope itself and on the following parts in the hoist drive.
Vöth Stefan
doaj   +1 more source

NALYSIS OF ROPE SWAY AND METHODS FOR DAMPING THE OSCILLATION ARISING DURING THE MOVEMENT OF A LOAD USING HOISTING MECHANISM

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
An analysis of rope oscillation that occur during the movement of a suspended load is presented. Standard shaping filters reduce the oscillation amplitude but are not able completely prevent this oscillation is shown by simulation.
A. V. Markov   +3 more
doaj   +1 more source

Lyapunov-Based Control of the Sway Dynamics for Elevator Ropes [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2014
In this brief, we study the problem of rope sway dynamics control for elevator systems. We choose to actuate the system with a force actuator pulling on the compensation sheave. Under these conditions, we formulate this problem as a bilinear control problem and propose several nonlinear controllers based on Lyapunov theory to stabilize the rope sway ...
Mouhacine Benosman, Daiki Fukui
openaire   +2 more sources

Sway and Disturbance Rejection Control for Varying Rope Tower Cranes Suffering from Friction and Unknown Payload Mass [PDF]

open access: yesNonlinear Dynamics, 2021
Abstract Tower cranes are well-known underactuated systems, where the design of controllers for them with time-varying rope length was weak in the past because of their complex dynamic characteristic. The payload oscillation will become worse when the jib slew angle, the trolley position and the rope length are changed simultaneously.
Zheng Tian   +3 more
openaire   +1 more source

Development of payload sway suppression control technology simulated repowering for the crane

open access: yesNihon Kikai Gakkai ronbunshu, 2022
For improving safety and shortening the working time in payload transporting using an overhead crane without depending on the skills of the operator, we examined a control method for automatically suppressing payload sway.
Yasuyuki MOMOI   +3 more
doaj   +1 more source

Free vibration analysis of elevator rope with vibration suppressors which located except for both ends part with gap from rope

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Vibration suppressors are used to resolve the problem of collisions and entanglement to the hoistway equipment caused by the rope sway due to the resonance of the building and the elevator rope.
Takahiro FUJITANI, Hiroyuki KIMURA
doaj   +1 more source

Anti sway tuned control of gantry cranes

open access: yesSN Applied Sciences, 2021
Load swaying is one of the most frequently occurring problems at production sites. The purpose of this work is to create a control system for the movement of an overhead crane with an anti-sway function.
Vladimir A. Suvorov   +5 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 even 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. To gain an understanding of rope sway, the free
Takahiro FUJITANI, Hiroyuki KIMURA
doaj   +1 more source

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