Abstract
Abstract The present paper introduces the mechanical part of the two-motor electric drive of the main hoist of the overhead casting crane, its Bode magnitude diagram, with a view of determining the necessity in considering elasticity in the math model of the electric drive. The work presents structural diagrams and math models of the mechanical part of the electric drive for three main states of the mechanism: normal mode, lifting and lowering of cargo in emergency service. Generalized pa-rameters enabling to analyze acquired Bode magnitude diagram and make a judgement on necessity in considering elasticity when modeling the electric drive operation, are calculated.
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