UG-based research and development of 3D pipe layout system of the aircraft engine

Standardized design method is important for the airworthiness certification. Based on the principles and features of the aircraft engine external pipe system, in this paper, the research on the theory of automation of pipe layout has been done. We also put forward the process of automatic and mixed generation of pipe layout, the design of pipe layout system and the resolution of arbitrariness of pipe layout. In order to improve the efficiency of the system, a parameterized component library has been built, on the basis of the secondary development of UG. Therefore, the automation pipe layout and the real-time modification have been achieved. According to the predefined rules, constraint test and result output of the system can be conducted.