Results 1 to 10 of about 126,361 (258)

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

Buildings
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, Jiang Qian, Yunyang Wang, Benkun Tan   +3 more
doaj   +4 more sources

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
doaj   +2 more sources

Sway and disturbance rejection control for varying rope tower cranes suffering from friction and unknown payload mass

Nonlinear Dynamics, 2021
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.
Zheng Tian, LiLi Yu, H. Ouyang, Guangming Zhang   +3 more
semanticscholar   +3 more sources

Anti sway tuned control of gantry cranes

SN 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, Mohammad Reza Bahrami, Evgeniy E. Akchurin, Ivan A. Chukalkin, Stanislav A. Ermakov, Sergey A. Kan   +5 more
doaj   +2 more sources

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

Nihon 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   +3 more sources

Real-Time Wire Rope Inclination Detection Using YOLOv9-Based Camera–LiDAR Fusion for Overhead Cranes

Journal of Marine Science and Engineering
Safe and efficient cargo handling is essential in modern port logistics, where overhead cranes are widely used to move containers, bulk materials, and heavy equipment.
Anh-Hung Pham, Ga-Eun Jung, Xuan-Kien Mai, Byeong-Soo Go, Seok-Ju Lee   +4 more
doaj   +2 more sources

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, Koji IESHIGE, Yugo OIKAWA, Takafumi KUROSAWA   +3 more
doaj   +1 more source

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., Shcherbakov V.S., Tansky V.V.   +2 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)

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
doaj   +1 more source

RELATION BETWEEN THE TENSION LOAD AND ROPE SWAY OF AN ELEVATOR OPERATING IN A BUILDING UNDER SINUSOIDAL EXCITATION

Journal of Structural and Construction Engineering (Transactions of AIJ), 2019
Elevators cannot be used during an earthquake and tend to be out of service long after a large earthquake. The operation of elevators during an earthquake requires the suppression of vibration of the whole elevator system, and especially ropes, in a ...
N. Miura, A. Sone
semanticscholar   +1 more source