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Modelling and control of overhead cranes with flexible variable-length cable by finite element method
Faculty
Not Specified
Year:
2005
Type of Publication:
Article
Pages:
1-20
Authors:
Moustafa, KAF, Gad, EH, El-Moneer, AMA, Ismail, MIS
DOI:
10.1191/0142331205tm135oa
Journal:
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL ARNOLD, HODDER HEADLINE PLC
Volume:
27
Research Area:
Automation \& Control Systems; Instruments \& Instrumentation
ISSN
ISI:000227305800001
Keywords :
control, finite element, flexible cable, modelling, overhead cranes, variable-length cable
Abstract:
This work considers the modelling problem of the dynamics of overhead cranes with flexible cable and load hoisting or lowering during crane travel. The analysis includes the transverse vibrations of the flexible cable and trolley motion. A set of nonlinear ordinary differential equations governing the motion of the crane system with time-varying spatial domain is derived via the calculus of variation and Hamilton's principle. A variable-domain finite element method is used to discretize the nonlinear system. A proportional- derivative controller is suggested to drive the crane to a desired destination. Numerical simulations are provided to show the effectiveness of the developed model and to illustrate the results.
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