Abstract:

The study of aeroengine condition monitoring a玠 fault diagnosis system is one of the important problems for improving the civil aviation maintenance service in our country, The purpose of the study is to assure (light safety, raise engine utilization ratio, increase economic and social benefit and reduce maintenance cost. Such a study will certainly bring about a great advance of civil aviation of China. The necessity of the study presented in this paper is based on the use and development of the system in the world airlines and the maintenance service of civil aviation in our country. The engine parameter trend analysis, gas passage analysis and the esgine vibration analysis are discussed more comprehensively. The study approach and the basic model are also presented.

Key words: aeroengine, condition monitoring, fault diagnosis