Results 211 to 220 of about 9,048 (265)
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Ultracapacitor storage for a 50t capacity gantry crane
2012 XXth International Conference on Electrical Machines, 2012This paper presents, for a system consisting of a gantry crane, the sizing of an Ultracapacitor (UC) based storage sytem, and its performance test using a simulated model of the system considered as a multi-axis drive. Preliminary examination of different operating processes has been done.
DI NAPOLI, Augusto, Ndokaj A.
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Backstepping Boundary Control for a Class of Gantry Crane Systems
IEEE Transactions on Cybernetics, 2023In 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 described by a hybrid system.
Yurou Wen +3 more
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Intelligent control of overhead gantry cranes
2009 6th International Symposium on Mechatronics and its Applications, 2009Overhead 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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Horizontal Force on Tire Gantry Crane
Applied Mechanics and Materials, 2013Difference of trolley traction distribution and slip angle of tire wheels may cause extra horizontal force to legs of tire gantry crane. The case and cause were studied to estimate the force for the crane design, control, and operation. And that was compared with one specialized in the design rules of rail gantry crane.
Meng Long Lu, Zheng Gui
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Nonlinear feedback control of a gantry crane
Proceedings of 1995 American Control Conference - ACC'95, 2005Considers a nonlinear dynamical model for a gantry crane to design a control input that transports a load along a specified transport trajectory in such a way that the load angle oscillation is suppressed as quickly as possible. A nonlinear tracking controller for the load position and velocity is designed that gives guaranteed performance.
J. Yu, F.L. Lewis, T. Huang
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Nonlinear Control of a Gantry Crane
2013This paper treats the nonlinear control of a laboratory model of a gantry crane, where a trolley can be moved on a rail and the load is fixed at the end of a rope of variable length. The system is differentially flat, and the coordinates of the load, which also are the variables to be controlled, are a flat output.
Bernd Kolar, Kurt Schlacher
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Online learning control of a gantry crane
Proceedings of the 2000 IEEE International Symposium on Intelligent Control. Held jointly with the 8th IEEE Mediterranean Conference on Control and Automation (Cat. No.00CH37147), 2002In many industrial control applications, different controller structures and parameters should be used for different operating scenarios. These changes can be due to plant or environmental variations. The classical control approaches are either the use of some sort of gain scheduling to cover different operation modes, or to adapt the controller ...
P. Albertos, M. Olivares
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Digital passive teleoperation of a gantry crane
2007 IEEE International Symposium on Industrial Electronics, 2007Gantry cranes still pose a control challenge, mainly due to the problem of load swing suppression in under-actuated conditions. In the teleoperation setup, the operator-master dynamics and the transmission delay complicate the overall system design. Fortunately, the framework of passivity theory offers the necessary resources to address this problem ...
Fernández Villaverde, Alejandro +2 more
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Journal of Dynamic Systems, Measurement, and Control, 2003
Rest to rest movement of a crane’s swinging load, at the bottom end of a cable, by moving a speed-limited gantry trolley at the top, involves resolving the apparently conflicting demands of exact load positioning and active swing damping. If system parameters are unknown beforehand, best existing strategies offer only asymptotic solutions. The proposed
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Rest to rest movement of a crane’s swinging load, at the bottom end of a cable, by moving a speed-limited gantry trolley at the top, involves resolving the apparently conflicting demands of exact load positioning and active swing damping. If system parameters are unknown beforehand, best existing strategies offer only asymptotic solutions. The proposed
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Dynamics of spreader motion in a gantry crane
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 1998This paper illustrates the steps necessary to model the dynamics of a model rubber-tyred gantry (RTG) crane as used in container-handling operations. Various modelling criteria are discussed with the emphasis placed on the importance of non-linear coupling between the chosen system coordinates. The machine is treated as three rigid bodies, these being
M P Cartmell, L Morrish, A J Taylor
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