Results 1 to 10 of about 723 (295)
Laboratory Device for Checking the Functionality of the Elevator Rope Sensors [PDF]
Management Systems in Production Engineering, 2021 The paper describes the structural design of a laboratory device that allows for presenting operation, simulating work procedures and checking functionality of the elevator “rope sensors” when equalizing different tensile forces in partial ropes of a ...
Hrabovsky Leopold, Borovsky David
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Machines, 2022 Multi-rope elevators are widely used in modern buildings. However, problems such as vibration, noise, uneven wear of key components and shortened life caused by the uneven distribution of rope tensions are still unsolved in the elevator industry.
Zhen Qin, Sung-Ki Lyu, Lyu Sung-Ki
exaly +4 more sources
Design and analysis of elevator wire ropes [PDF]
International Journal for Simulation and Multidisciplinary Design Optimization, 2021 In this research paper design and analysis of wire ropes used in elevator have been presented. The main objective of this study is to find the best practices on handling wire ropes for safety and to reduce the downtime of elevators due to wire rope ...
Babu Seelam Anil +2 more
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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
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Nihon Kikai Gakkai ronbunshuIn high-rise buildings, elevator ropes, which are flexible long objects, continue to vibrate with very large amplitude for a long period of time during an earthquake. The elevator cannot be restarted unless this vibration is reduced.
Daisuke TAINAKA +3 more
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Journal of Asian Architecture and Building Engineering, 2023 Observing the vibration of the elevator ropes in an elevator shaft is a difficult task. Although several methods of observing the displacement using image processing or laser displacement meters and then estimating the vibration through an observer or a ...
Nanako Miura +2 more
exaly +2 more sources
Damping force of air acting on vibrating elevator rope
Mechanical Engineering Journal, 2021 This paper describes the vibration damping characteristics of elevator ropes acted on by air. High-rise buildings sometimes resonate during earthquakes, and the elevator ropes in the building may swing significantly as a result. The vibration analysis of
Raichi TAKUMI, Hideo UTSUNO
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Nihon Kikai Gakkai ronbunshu, 2022 Elevators are essential for means of vertical transportation. Recently elevators, which are installed in high buildings, are long stroke. These elevator ropes are longer than conventional elevator ropes.
Shigeki OKAMURA +5 more
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Nihon Kikai Gakkai ronbunshu, 2021 When an elevator rope for a high-rise building is forcibly excited by the displacement of the building induced by wind force and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the building ...
Hiroyuki KIMURA +2 more
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Lyapunov-Based Control of the Sway Dynamics for Elevator Ropes [PDF]
IEEE 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
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