Research And Application On Virtual Assembly Technologies Of Aircraft Based On DELMIA

Aircraft assembly, which not only has great workload and collaborative difficulties, but also has many difficulties to achieve adequate quality, plays an important role in aircraft manufacture. Improvements of the technologies in aircraft assembly becomes to a pivotal problem in aircraft design and manufacture. Virtual assembly is a rising aspect of design and assembly, and has a brightly application perspective. It plays an important role in improvements of the technologies in aircraft assembly, shortening the production cycle and enhancing the product quality. So it is of great significance in the aircraft design and manufacture. The technologies of virtual assembly and the framework of virtual assembly environment are both studied in this paper. The virtual assembly of the airframe system products is discussed in detail, according to some special particularities in aircraft assembly. The main research issues are as follow:First, giving a study in theorems of virtual assembly and the key techniques in the virtual assembly environment, some valuable conclusions are drawn. The assembly information of the airframe system products in DELMIA is analyzed and obtained, which provides the basis of the assembly sequence and path planning.Second, the virtual assembly of the airframe system products is achieved in DELMIA. In the beginning, the current methods of assembly sequence planning, assembly path planning and collision detection is discussed in detail. On the assumption of the reversibility of assembly and disassembly, assembly sequence and assembly path are optimized through applying the disassembly method and the collision detection technique in DELMIA, Then, the rationality of the assembly operation and the assembly reachability of the assembly model are evaluated and the design method of a assembly tool is studied based on the ergonomics knowledge and DELMIA/Ergonomics.