This paper studied the FMS dynamic scheduling problem which was based on Petri net FMS static scheduling optimization algorithm, which in accorder to solve the FMS actual production scheduling problems. A rolling window dynamic re-scheduling strategy was proposed which based on event driven and cycle driven. Then take the emergency machine failure often appearing in the actual workshop for example, this scheduling strategy was analyzed and applied to dynamic simulation and finally the effectiveness of the dynamic scheduling strategy was verified.

On the market today, the hardware and most software of CNC system are not exclusive and incompatible, and the system institutions vary, which makes the control systems of different manufacture relatively independent, closed to each other. In order to break this situation, this paper conducted a project design on the hardware and software of CNC system which is based on PC platform. On the hardware, ultimately determine the NC embedded PC architecture, design and motion control card based on PCI bus; in the aspect of software design, use Windows2000/XP operating system to achieve multitasking real-time CNC control, and design the software in the Visual C++ environment .Using the platform to achieve the application of the laser welding system, the design is proved to be feasible, it also reflects the basic idea of the open architecture.

In the paper, the housing of a specific type of sheet-metal type hydraulic torque converter is modeled and simplified by means of three coordinate measuring instrument and UG software. Moreover, the housing fatigue life is simulated and predicted by FLUENT and MSC software platform according to the three-dimensional flow theory. Further tests are launched to research and analyze the fatigue life and testify the simulation. It is proved that the simulation result basically complies with the experiment result. Upon less than 100,000 pressure circulations, the dilatation undergoes linear variations. In this phase, the housing suffers from elastic deformation. When the number of pressure circulation exceeds 100,000, the housing undergoes plastic deformation. Besides, the part of impeller and turbo housing with the largest curvature discontinuity, and the connection between the center and the bearing bushing shall bear a short service life.

In order to solve the problems of the easy breakage, transport problems and pile holes shrinkage, a sleeve piling machine was designed. It included a fully used pile frame, a novel pile driver and its piling method. The piling machine integrated the advantages of the diesel hammer piling machine and the vibration hammer piling machine. It is suitable for bored piles and compacted piles. Based on the sleeve pile tubes, the diesel hammer and the vibration hammer worked together to drill. Then the reinforcing cage was lifted by the hoister, the pile tubes were pulled and the concrete were poured with the help of the vibration hammer. All of them can avoid the shrinkage of the pile, the break of the pile, and improve construction efficiency. Besides, finite element analysis of the pile tubes were calculated by ANSYS, the results showed that the strength of the pile tubes was satisfied with the requirements of application. The piling machine and the method were feasible.

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