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Simulation analysis on the hydraulic system of shearer's cutting part was established based on the research of fluid simulation technology. The hydraulic model was built using the AMESim software. By verifying the results, a new method about the rigorous analysis of holistic dynamic property of the hydraulic system is developed and a new way to design new type mining machinery and improve its capabilities is provided.

The paper first put CAD/CAE technology into the domain of hydraulic excavator research and exploitation. It was focused on the analysis of excavator working equipment with this technology. In the paper, mock-up solid model of excavator working equipment was established with Pro/ENGINEER software, the kinematics and the dynamics of the model was analyzed with ADAMS software and then the intensity analysis and structure optimization were done with ANSYS software. The conjoint analysis and simulation not only give full play to these three software's advantages, but also realize data sharing and enhance efficiency and precision of the analysis.

By taking full advantage of the technologies of data acquisition, signal analysis and processing and fault diagnosis, this thesis carries out a research on the realization method of mine hoist bearing condition monitoring and fault diagnosis. Firstly, this thesis takes a technical analysis for rolling bearing. Secondly, based on determining the overall framework and using a virtual instrument software (Labview), it carries out a program development of the system. The developed system not only integrates the functions of traditional instruments, but also describes the bearing states and the types of bearing failure accurately according to the running status of the monitored bearings. It provides technical support for the mine hoist repair and maintenance and scientific protection for its safe running.

In recent years, with the development of virtual reality technology and informatization requirements of the coal industry, virtual reality technology has been initially applied to mine production. According to the relevant virtual reality technology, with the software engineering methods, using software such as MultiGen Creator and Vega, a fully mechanized coal face simulation system which can simulate process of longwall face was established; and the scene database design and processing, and other key technology was completed. Finally the simulation of complex process of fully mechanized coal face was effectuated and a new method and platform for the production of guidance and training of miners was supplied.