Study On Decision-Making Support System For Anti-fatigue Manufacturing Process Of Aircraft Landing Gear

With the development of the large-scale aircraft project, the design and manufacture of aircraft landing gear trends to the direction of more safety, more reliability and high-technology, to improve anti-fatigue properties of its and lengthen its service-life.It becomes more and more important to study anti-fatigue technology for the aircraft landing gear. In this thesis, Web-based decision-making support system for anti-fatigue manufacturing process of aircraft landing gear is studied. The system structure is designed and some functions are implemented.The major work of this paper completed is as follows:(1)Design of the frame of decision-making support system for anti-fatigue manufacturing process of aircraft landing gear Based on decision-making support system, expert system and intelligent reasoning technology, and according to the application requirements of this system, a frame of decision-making support system for anti-fatigue manufacturing process of aircraft landing gear is built up on the J2EE technology platform, and the system's functional modules is divided.(2)Design of the data source of the system In the thesis, the logic relation of the anti-fatigue manufacturing process model is defined and the system implemented the visualized management of anti-fatigue manufacturing process models according to the category of them. By three-dimension frame structure, the anti-fatigue manufacturing process model's feature information model is defined , to achieve the expandability of them.(3)Design and implementation of reasoning decision for anti-fatigue manufacturing process of aircraft landing gear To make the system more intelligence and efficiency, a hybrid fast reasoning mechanism composed by anti-fatigue manufacturing knowledge-based reasoning and anti-fatigue manufacturing case-based reasoning is designed to find the optimal manufacturing process of anti-fatigue. It assist designer to design high anti-fatigue landing gear.(4)Development and implement of the system and its key technology The decision-making support system development environment is introduced, and the key technology of the system development is detailed, such as Web-based document modification, mathematical formulas modification and the achievement of dynamic-tree generation.