Results 21 to 30 of about 26,961 (241)

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

Experimental investigation of the mooring system of a wave energy converter in operating and extreme wave conditions [PDF]

open access: yes, 2020
A proper design of the mooring systems for Wave Energy Converters (WECs) requires an accurate investigation of both operating and extreme wave conditions.
Begovic E.   +7 more
core   +1 more source

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   +1 more source

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

Vibration analysis of elevator rope with vibration suppressors (Identification of flexural rigidity, viscous damping and structural damping)

open access: yesNihon 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
doaj   +1 more source

Free vibration analysis of a string with vibration suppressor (When the position of vibration suppressor is opposite to the pulled position)

open access: yesMechanical Engineering Journal, 2016
A vibration suppressor is used to change the natural frequency of an elevator rope, and to prevent resonance. The elevator rope is modeled using a string.
Hiroyuki KIMURA
doaj   +1 more source

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