Results 211 to 220 of about 9,234 (262)

Horizontal Force on Tire Gantry Crane

Applied Mechanics and Materials, 2013
Difference 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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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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A Gantry Crane Problem Solved

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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Ultracapacitor storage for a 50t capacity gantry crane

2012 XXth International Conference on Electrical Machines, 2012
This 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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Nonlinear feedback control of a gantry crane

Proceedings of 1995 American Control Conference - ACC'95, 2005
Considers 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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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), 2002
In 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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Seismic Response of Gantry Cranes

2020
Gantry cranes are customized to meet specific requirements at a facility. Due to their unique configuration, prescriptive design, based on empirical rules, cannot be justified. Gantry cranes have some brittle elements (joints and connections) and some ductile elements (steel beams and columns).
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Digital passive teleoperation of a gantry crane

2007 IEEE International Symposium on Industrial Electronics, 2007
Gantry 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, Raimúndez Álvarez, José Cesáreo, Barreiro Blas, Antonio   +2 more
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Nonlinear Control of a Gantry Crane

2013
This 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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Travelling gantry crane with suspended mass

2000
Here we must achieve a model, in order to regulate both the freedom degrees of a travelling gantry crane composed of a mass truck M, moving according to the x axis under the action of an F force and m mass suspended from a 1 long cable. The m mass oscillates from its cable with a θ angle in relation to the vertical attached point.
Mohand Mokhtari, Michel Marie
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