Results 1 to 10 of about 59,880 (209)
BuildingsHorizontal 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
exaly +5 more sources
Lyapunov-Based Control of the Sway Dynamics for Elevator Ropes [PDF]
IEEE Transactions on Control Systems Technology, 2014 In this work we study the problem of rope sway dynamics control for elevator systems. We formulate this problem as a bilinear control problem and propose nonlinear controllers based on Lyapunov theory, to stabilize the rope sway dynamics. We study the stability of the proposed controllers, and test their performances on a numerical example.
mouhacine Benosman
exaly +4 more sources
Use of balancing rope for damping of cargo sways moved by a loading crane [PDF]
Научно-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
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Inclined Rope Reeving Systems [PDF]
E3S 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
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Sway and disturbance rejection control for varying rope tower cranes suffering from friction and unknown payload mass [PDF]
Nonlinear 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 +2 more
exaly +2 more sources
Transactions of the JSME (in Japanese), 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
exaly +3 more sources
Vibration analysis of elevator rope with one vibration suppressor
Transactions of the JSME (in Japanese), 2018 When 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, rope displacement becomes large even if the ground acceleration and the buildings ...
Takahiro Fujitani
exaly +3 more sources
Доклады 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
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Development of payload sway suppression control technology simulated repowering for the crane
Nihon 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
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Nihon 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
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