Results 261 to 270 of about 529,224 (335)

Building a lightweight digital twin of a crane boom for structural safety monitoring based on a multi-fidelity surrogate model

Journal of Mechanical Design, 2022
Undetected fatigue and overload damages at the key locations of the crane boom are among the biggest threats in construction, leading to structural failure.
Xiaonan Lai, Xiwang He, Shuo Wang, Xiaobang Wang, Wei Sun, Xueguan Song   +5 more
semanticscholar   +1 more source

Asymmetric Input–Output Constraint Control of a Flexible Variable-Length Rotary Crane Arm

IEEE Transactions on Cybernetics, 2021
This article demonstrates the realization of angle tracking and deformation suppression by developing two boundary controllers for a flexible variable-length rotary crane arm with extraneous disturbances and asymmetric input–output constraints.
Yu Liu, Yanfang Mei, He Cai, Changran He, Tao Liu, G. Hu   +5 more
semanticscholar   +1 more source

Neural Network-Based Adaptive Antiswing Control of an Underactuated Ship-Mounted Crane With Roll Motions and Input Dead Zones

IEEE Transactions on Neural Networks and Learning Systems, 2020
As a type of indispensable oceanic transportation tools, ship-mounted crane systems are widely employed to transport cargoes and containers on vessels due to their extraordinary flexibility.
Tong Yang, Ning Sun, He Chen, Yongchun Fang   +3 more
semanticscholar   +1 more source

Vision-Based Productivity Analysis of Cable Crane Transportation Using Augmented Reality-Based Synthetic Image

Journal of computing in civil engineering, 2022
The productivity analysis of cable crane transportation in the construction field is of great significance to improve crane equipment management and reduce operation costs.
Dong Wang, Xiaoling Wang, Bingyu Ren, Jiajun Wang, Tuocheng Zeng, Dong-Myeng Kang, Guohao Wang   +6 more
semanticscholar   +1 more source

Backstepping Boundary Control for a Class of Gantry Crane Systems

IEEE Transactions on Cybernetics, 2022
In this article, two boundary feedback controllers are designed via the backstepping approach for a class of gantry crane systems. To provide an accurate and concise representation of the dynamic behavior, the gantry crane with a flexible cable is ...
Yurou Wen, X. Lou, Wei Wu, B. Cui
semanticscholar   +1 more source

Effects of dataset characteristics on the performance of fatigue detection for crane operators using hybrid deep neural networks

Automation in Construction, 2021
Fatigue of operators due to intensive workloads and long working time is a significant constraint that leads to inefficient crane operations and increased risk of safety issues.
Pengkun Liu, H. Chi, Xiao Li, Jingjing Guo   +3 more
semanticscholar   +1 more source

Nonlinear Motion Control of Complicated Dual Rotary Crane Systems Without Velocity Feedback: Design, Analysis, and Hardware Experiments

IEEE Transactions on Automation Science and Engineering, 2020
As a class of underactuated systems, cooperative dual rotary crane systems (DRCSs) are widely used to complete the task of large payload transportation in complex environments, since the working capacity of single cranes is quite limited.
Ning Sun, Yu Fu, Tong Yang, Jianyi Zhang, Yongchun Fang, X. Xin   +5 more
semanticscholar   +1 more source

Payload oscillation control of tower crane using smooth command input

Journal of Vibration and Control, 2021
This paper presents a smooth command (SC) input shaper for suppressing payload oscillations in rest-to-rest simultaneous radial and tangential motions of a tower crane.
A. al-Fadhli, E. Khorshid
semanticscholar   +1 more source

Anti-sway control of offshore crane on surface vessel using global sliding mode control

International Journal of Control, 2021
In this paper, the global sliding mode control technique is designed for anti-sway control of offshore crane mounted on surface vessel. The offshore cranes are responsible for moving containers from mega container ships to a smaller vessel.
Mohammad Saghafi Zanjani, Saleh Mobayen
semanticscholar   +1 more source

Study on a Portable Electrode Used to Detect the Fatigue of Tower Crane Drivers in Real Construction Environment

IEEE Transactions on Instrumentation and Measurement
In view of the serious accidents caused by the fatigue operation of tower crane drivers in construction, this study puts forward a novel type of portable semi-dry electrode to detect the mental fatigue state of tower crane drivers in real time and reduce
Fuwang Wang, Mingjia Ma, Xiaolei Zhang
semanticscholar   +1 more source