Results 271 to 280 of about 529,224 (335)

Identification of Critical Causal Factors and Paths of Tower-Crane Accidents in China through System Thinking and Complex Networks

Journal of construction engineering and management, 2021
Tower-crane accidents occur frequently with serious consequences, including deaths, serious injuries, and economic losses.
Wei Zhang, Nannan Xue, Jianrong Zhang, Xiao Zhang   +3 more
semanticscholar   +1 more source

Adaptive Anti-Swing Control for 7-DOF Overhead Crane With Double Spherical Pendulum and Varying Cable Length

IEEE Transactions on Automation Science and Engineering
Three dimensional (3D) overhead crane is a typical multi-input multi-output (MIMO) and underactuated mechatronic system. Complex double spherical pendulum dynamics and varying cable length increase the difficulty of the swing suppression control for ...
Gang Li, Xin Ma, Yibin Li
semanticscholar   +1 more source

Adaptive Sliding-Mode Control of an Offshore Container Crane With Unknown Disturbances

IEEE/ASME transactions on mechatronics, 2019
In this paper, an adaptive sliding-mode control (ASMC) for offshore container cranes that load/unload containers from a mega container ship to a smaller vessel is investigated.
Gyoung-Hahn Kim, K. Hong
semanticscholar   +1 more source

Nonlinear Antiswing Control for Crane Systems With Double-Pendulum Swing Effects and Uncertain Parameters: Design and Experiments

IEEE Transactions on Automation Science and Engineering, 2018
In practical applications, industrial cranes may exhibit double-pendulum swing effects, due to many factors, such as large payload scales and non-negligible hook masses.
Ning Sun, Yiming Wu, Yongchun Fang, He Chen   +3 more
semanticscholar   +1 more source

Identification of Critical Causes of Tower-Crane Accidents through System Thinking and Case Analysis

, 2020
Tower-crane accidents occur frequently and often have serious consequences. To identify the critical causes of tower-crane accidents, this study adopted a method that combined system thinki...
Xiao Zhang, Wei Zhang, Ling Jiang, Tingsheng Zhao   +3 more
semanticscholar   +1 more source

Antiswing Cargo Transportation of Underactuated Tower Crane Systems by a Nonlinear Controller Embedded With an Integral Term

IEEE Transactions on Automation Science and Engineering, 2019
A tower crane is a nonlinear mechatronic system with complicated underactuated characteristics, which is widely used in modern construction sites. At present, most existing methods for tower cranes are proposed by linearizing the original nonlinear ...
Ning Sun, Yiming Wu, He Chen, Yongchun Fang   +3 more
semanticscholar   +1 more source

Scheduling Yard Cranes Considering Crane Interference

2011
Automated stacking cranes form the heart of modern container terminals. Hence, their productivity has a major influence on the performance of the terminal. In the first part of this paper, the yard crane scheduling problem and its practical relevance from the point of view of the Container Terminal Altenwerder (CTA) in Hamburg, Germany, is described ...
Speer, Ulf, John, Gerlinde, Fischer, Kathrin   +2 more
openaire   +1 more source

Optimal trajectory planning strategy for underactuated overhead crane with pendulum-sloshing dynamics and full-state constraints

Nonlinear dynamics, 2022
Gang Li, Xin Ma, Zhi Li, Yibin Li
semanticscholar   +1 more source

Intelligent Optimal Control With Critic Learning for a Nonlinear Overhead Crane System

IEEE Transactions on Industrial Informatics, 2018
In this paper, for achieving the discounted optimal feedback stabilization of a nonlinear overhead crane system, we establish an intelligent control strategy to obtain the solution of the corresponding Hamilton–Jacobi–Bellman equation.
Ding Wang, Haibo He, Derong Liu
semanticscholar   +1 more source

Cranes. Offshore cranes

2015
  +4 more sources