Results 161 to 170 of about 356,901 (231)

Overhead Electric Travelling Cranes

Proceedings of the Institution of Mechanical Engineers, 1937
The installation of an overhead electric crane is often left in the hands of specialist manufacturers. Plant engineers, however, need to ascertain service and performance requirements when considering an installation, and they often rebuild or modify existing cranes in order to reduce production and maintenance costs by improving the reliability of ...
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Intelligent control of overhead gantry cranes

2009 6th International Symposium on Mechatronics and its Applications, 2009
Overhead gantry crane systems have been integral part of many heavy industrial applications needing material handling and transportation. This can easily be seen in emerging countries growing rapidly. Single force control input applied to crane moves it to a desired position but also triggers undesired swing on the payload which makes it an interesting
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Adaptive neural network hierarchical sliding mode control for six degrees of freedom overhead crane

Asian journal of control, 2022
This paper presents an effective control method for three‐dimensional (3D) overhead cranes with six degrees of freedom (DOF). Two payload swings and an axial payload oscillation should be minimized besides driving the bridge, trolley, and hoisting drum ...
Thai Dinh Kim, Thien-Quang Nguyen, Dung Manh Do, H. Le   +3 more
semanticscholar   +1 more source

Safety-Critical Disturbance Rejection Control of Overhead Crane Systems: Methods and Experimental Validation

IEEE Transactions on Control Systems Technology
Crane systems generally operate in challenging environments (e.g., harsh weather conditions and high-altitude work), which heightens the requirements of control systems for the safety and disturbances rejection.
Zheng Tian, Xinming Wang, Jun Yang, Shihua Li, Dan Niu, Qi Li   +5 more
semanticscholar   +1 more source

Anti-swing Control of Overhead Cranes

2006 6th World Congress on Intelligent Control and Automation, 2006
In this paper a controller is designed for the overhead cranes using the recently developed parallel differential (PD) eigenevalue assignment methodology. Using this theory, classical results for LTI control design carry over to the time-varying case. The main achievement of this paper is the first implementation of a controller designed using the PD ...
null Lifu Wang, null Xiangdong Wang, null Zhi Kong   +2 more
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Automatic Control of an Overhead Crane

IFAC Proceedings Volumes, 1981
Abstract In the iron and steel industry, the automation and computer control of each manufacturing process has been promoted in order to improve productivity. However, the automation of transportation between manufacturing pro-cesses is lagging behind.
E. Ohnishi, I. Tsuboi, T. Egusa, M. Uesugi   +3 more
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Anti-sway control for overhead crane

2007 International Conference on Control, Automation and Systems, 2007
The models of overhead crane system have been studied in many regulation methods; hence bring about the variation parameter. However, there are have the similar conjecture of angular velocity (thetas dot) in the mathematics models of pendulum system. The angular velocity can be deduced to be zero to perform the simply system as the linear equation form.
null Kitichoke Prommaneewat, null Prapas Roengruen, null Viriya Kongratana   +2 more
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Funnel control for overhead crane model

PAMM, 2018
AbstractWe consider an overhead crane whose control variables are the length of the rope and force/velocity at the gantry. The output consists of the position of the load. The objective is to design a closed‐loop tracking controller which also takes into account the transient behavior. First we show that this system has no well‐defined relative degree,
Thomas Berger, Huy Hoàng Lê, Timo Reis
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Fuzzy logic controller for overhead cranes

Engineering Computations, 2006
PurposeTo propose a new method for controlling the overhead crane systems based on the theory of fuzzy logic with a reduced number of rules than has appeared before in the literature. The proposed fuzzy logic controller (FLC) can be implemented to move the overhead crane along a desired path while ensuring that the payload is swing free at the end of ...
Hayajneh, Mohammed T., Radaideh, Saleh M., Smadi, Issam A.   +2 more
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Disturbance rejection control for overhead cranes

2017 IEEE International Conference on Real-time Computing and Robotics (RCAR), 2017
In the presence of persistent perturbations in both unactuated and actuated dynamics of crane systems, this paper designs an observer-based robust control method that achieves the objective of trolley positioning and cargo swing suppression. The system dynamics are transformed into a quasi-chain-of-integrators form, based on which a reduced-order ...
Ning Sun, Yiming Wu, Yongchun Fang, He Chen   +3 more
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