Research of prognostics and health management for aircraft propulsion system

Aircraft Propulsion System is a complex system which needs to be detected to make sure the safety of flying and maintain in time. The prognostics and health management (PHM) of aircraft propulsion system is the core of the PHM of whole aircraft. Because of it is considered that the ground surveillance technology is more important than the online PHM, this paper introduces the connotation, functionalities and architecture of prognostics and health management. The function requirement and allocation of the prognostics and health management of aircraft propulsion system is considered to design PHM, in the terms of architecture and functionalities. The integrated prognostics is described and designed. An inference engine is proposed. The designing and the function of integrated diagnosis of Prognostics and Health Management for Aircraft Propulsion System are achieved. And it has great value for engineering applications.