| Hydraulic support is an important support equipment in coal mining. Its performance has a very important impact, in terms of downhole support equipment, worker safety and efficiency of coal mining. Although hydraulic support has been widely used, but the dynamic characteristics of the hydraulic support is not enough awareness in the work process. Hydraulic support is driven by hydraulic pressure, involving mechanical, electrical and hydraulic coupling products. In this paper, the study of multi-domain simulation is standing shield hydraulic support, which includes two double telescopic columns. First, according to the two-dimensional drawings of hydraulic support, the completion of the basic components of hydraulic support modeling and assembly work is based on modeling software Pro/E. Secondly, the mechanical modeling of hydraulic support system is completed in ADAMS using intermediate data format. Kinematic analysis of hydraulic support is done in ADAMS, the curves of lifting column and the horizontal displacement of the front roof beams are obtained. Changes of the center of gravity and the effects of four-links on the hydraulic support stability are known according to the simulation curve. Then, the hydraulic system modeling and simulation of hydraulic support was completed in AMESim, the pressure and flow curves are obtained. Structural parameters of parts and hydraulic system pressure and flow have effects on hydraulic support performance. Finally, multi-domain simulation is done through simulation interface and exchange variables in a unified C++simulation environment. Curves of mechanical system motion characteristics and hydraulic system pressure and flow are obtained in lifting column stage. After refining the model, dynamic characteristics of hydraulic supports are analyzed. Interface problems are studied between mechanical systems and hydraulic systems. It is an example of the application of multi-domain simulation technology. |
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