Results 261 to 270 of about 534,364 (333)
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Multisensor-driven real-time crane monitoring system for blind lift operations: Lessons learned from a case study

, 2021
Crane operators are often unable to identify collision hazards due to limited visibility during blind lifts or when operating under cluttered conditions.
Leon C. Price   +3 more
semanticscholar   +1 more source

BIM-based 4D mobile crane simulation and onsite operation management

, 2021
Heavy industrial construction, particularly when modularization is adopted, requires thorough heavy-lift studies to manage the extensive use of mobile cranes in congested and dynamic site layouts.
Ala Nekouvaght Tak   +4 more
semanticscholar   +1 more source

A practicality and safety-oriented approach for path planning in crane lifts

Automation in Construction, 2021
Safe and efficient operations of cranes in complex construction environments require thorough planning of lift paths. As the scales of construction projects expand, path planning becomes excessively sophisticated and laborious using conventional ...
Songbo Hu, Yihai Fang, Hongling Guo
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   +5 more
semanticscholar   +1 more source

An A-Star algorithm for semi-optimization of crane location and configuration in modular construction

, 2021
Nowadays, the use of heavy mobile cranes in on-site construction of industrial projects has become inevitable. Due to the high rental cost of such cranes, an optimized plan is essential for the multiple crane lifts.
S. Bagheri   +4 more
semanticscholar   +1 more source

Integrated optimization on yard crane scheduling and vehicle positioning at container yards

Transportation Research Part E: Logistics and Transportation Review, 2020
A container yard is a storage facility that allows handling resources to improve operational efficiency by facilitating container flows at a container terminal.
Chenhao Zhou, B. Lee, Haobin Li
semanticscholar   +1 more source

Integrated continuous berth allocation and quay crane assignment and scheduling problem with time-dependent physical constraints in container terminals

Computers & industrial engineering, 2020
This paper presents an integer programming model for integrated continuous berth allocation, quay crane assignment and quay crane scheduling problem (BACASP) in container terminals where berthing possibility depends on water depth and tide conditions ...
Amirsalar Malekahmadi   +3 more
semanticscholar   +1 more source

Nonlinear modeling and robust LMI fuzzy control of overhead crane systems

Journal of the Franklin Institute, 2020
Overhead cranes are widely used structures for lifting and conveying heavy loads. The development of feedback control systems for such equipment is important due to the large number of potential applications and advantages over manual operation ...
C. Aguiar   +4 more
semanticscholar   +1 more source

Improved unity magnitude input shaping scheme for sway control of an underactuated 3D overhead crane with hoisting

Mechanical systems and signal processing, 2019
This paper proposes an improved unity magnitude zero vibration (UMZV) shaper for payload sway reduction of an underactuated 3D overhead crane with hoisting effects.
M. Maghsoudi   +5 more
semanticscholar   +1 more source

Efficient swing control of an overhead crane with simultaneous payload hoisting and external disturbances

, 2020
The effects of time varying parameters and external disturbances on a flexible system may badly degrade the control performance resulting in excessive induced vibrations/oscillations.
L. Ramli   +4 more
semanticscholar   +1 more source

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