Based on the multi-body system dynamics in the ADAMS environment, a virtual prototype of the bridge crane was developed.In this model, the whole system was disassembled longitudinal travelling system, trolley running mechanism system, lifting mechanism system with flexible body dynamics model of the wire rope. The virtual running environment was established according to the actual illegal working conditions, which is designed the oblique hanging & lifting working process with trolley running mechanism system movement.It is the key step to build metallurgical bridge crane dynamics model for performance analysis of system dynamics, which is the basis for the optimize design of metallurgy overhead crane system. Theoretical model analysis usually does not consider the coupling force status of metallurgical bridge crane system.It is an independent analysis to trolley running mechanism or lifting mechanism models. These models have played an important role in the assessment of the metallurgy bridge crane system performance and the system parameters, but do not reveal the interaction of the trolley running institutions and the lifting mechanism, which fail to be a comprehensive understanding practical system dynamics characteristic.Virtual prototype simulation results will be applied to prototype design and evaluation, and save a lot of manpower and material resources.At the same time, the method has an advantage for dynamics analysis to simulating some dangerous movement conditions, which is hard to be replayed or simulated at the test actual working condition site.In particular, some cases cannot be recurrence in the accident handling process. The simulation results show that the response value, the various causal relationship & law of the metallurgical bridge parts is nonlinear proportion to the coupling force of its trolley running mechanism and lifting mechanism raising.Variable stiffness characteristics of wire rope of hoisting mechanism are implemented successfully through discrete multiple rigid body being applied to the wire rope in this paper. The establishment of a metallurgical crane dynamic model is based on ADAMS, which realizes metallurgy crane system coupling modeling.Hoisting mechanism and trolley running simulations are combined in this model of metallurgy crane. These results with oblique hoisting process show that the model reflects the actual dynamics of metallurgical crane system, and also presents that some of the theoretical analysis results cannot be usually confirmed.
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