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Analysis of Stability for Overhead Crane Systems  

Ban Gab Su (상주대학교 자동차공학과)
Lee Kwang Ho (상주대학교 자동차공학과)
Mo Chang Ki (상주대학교 자동차공학과)
Lee Jong Gyu (상주대학교 자동차공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.4, 2005 , pp. 128-135 More about this Journal
Abstract
Overhead crane systems consist of trolley, girder, rope, objects, trolley motor, girder motor, and hoist motor. The dynamic system of these systems becomes a nonlinear state equations. These equations are obtained by the nonlinear equations of motion which are derived from transfer functions of driving motors and equations of motion for objects. From these state equations, Lyapunov functions of overhead crane systems are derived from integral method. These functions secure stability of autonomous overhead crane systems. Also constraint equations of driving motors of trolley, girder, and hoist are derived from these functions. From the results of computer simulation, it is founded that overhead crane systems is secure.
Keywords
Overhead crane systems; Nonlinear state equations; Lyapunov function; Constraint equations;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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